Search for New Physics with a Monojet and Missing Transverse Energy
in
pp Collisions at
p
ffiffiffi
s
¼ 7 TeV
S. Chatrchyan et al.* (CMS Collaboration)
(Received 24 June 2011; published 10 November 2011)
A study of events with missing transverse energy and an energetic jet is performed using pp collision data at a center-of-mass energy of 7 TeV. The data were collected by the CMS detector at the LHC, and correspond to an integrated luminosity of 36 pb1. An excess of these events over standard model contributions is a signature of new physics such as large extra dimensions and unparticles. The number of observed events is in good agreement with the prediction of the standard model, and significant extension of the current limits on parameters of new physics benchmark models is achieved.
DOI:10.1103/PhysRevLett.107.201804 PACS numbers: 13.85.Rm, 11.25.Wx, 14.80.j
This Letter describes a search for new physics in the missing transverse energy (EmissT ) and jet final state using data corresponding to an integrated luminosity of36 pb1, collected with the compact muon solenoid (CMS) experi-ment in pp collisions at a center-of-mass energy of 7 TeV provided by the Large Hadron Collider (LHC). Events containing a single energetic jet (monojet) are selected, although a second jet is allowed. This event signature is predicted in models such as large extra dimensions, based on the scenario by Arkani-Hamed, Dimopoulos, and Dvali (ADD) [1–4], or unparticles [5]. This study focuses on the search for direct production of a graviton G (or unparticle U) balanced by a hadronic jet via the processes qq ! gG (gU), qg! qG (qU), and gg ! gG (qU). Gravitons (un-particles) leave the detector without depositing any energy, and thus result in an apparent transverse energy imbalance in the final state. The primary backgrounds to this signature arise from Zþ jet and W þ jet production, and are esti-mated from the data.
The ADD model explains the large difference between the electroweak and Planck scales by introducing a number of extra spatial dimensions which in the simplest sce-nario are compactified over a torus of common radius R. The fundamental scale MDis related to the effective
four-dimensional Planck scale MPl according to the formula MPl2 MDþ2R. Gravitons can propagate in the extra dimensions and their production is expected to be greatly enhanced due to the kinematically available phase space in the extra dimensions. The gravitons are weakly coupled with standard model (SM) particles and their presence can only be inferred from EmissT . Searches for invisible particles produced in association with a jet or a photon were
performed previously [6–11], and no evidence of new physics was observed. The current lower limits on MD range from1:6 TeV=c2for ¼ 2 [6–9] to0:95 TeV=c2for ¼ 6 [10].
Unparticle models postulate a new scale-invariant (con-formal) sector which is coupled to the SM particles through a connector sector at a high mass scale. An operator with a general noninteger scale dimension dU in a conformal
sector induces a spectrum of particles with continuous mass. These ‘‘unparticles’’ leave without interacting with the detector, thus manifesting as EmissT . In this analysis, unparticles are assumed to be sufficiently long-lived that they do not decay in the detector. Effects of unparticles below mass scaleUare studied by using an effective field
theory. While there have been no direct searches for un-particles, a recent interpretation of CDF results suggests lower limits on U between 2.11 and 9:19 TeV=c2 for 1:05 < dU<1:35 [12,13].
The CMS apparatus has pixel and silicon-strip detectors for pseudorapidity ofjj < 2:5, where ¼ ln½tanð=2Þ and is the polar angle relative to the beam direction. Contained in a 3.8 T magnetic solenoid, the tracking detectors provide momentum reconstruction down to about 100 MeV=c with a resolution of about 1% at 100 GeV=c. A highly granular crystal electromagnetic calorimeter (ECAL) extends tojj < 3:0, and has an energy resolution of better than 0.5% for photons with a pT above 100 GeV.
A hermetic hadronic calorimeter (HCAL) extends tojj < 5:0 with a transverse hadronic energy resolution of about 100%=pffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiET½GeV 5%. A muon detector system recon-structs and identifies muons tojj < 2:4. A full description of the CMS detector can be found in Ref. [14].
Both ADD and unparticle signal events are generated with thePYTHIA8.130 Monte Carlo generator [15,16] with
Tune 1 and passed through the CMS full simulation via the
GEANT4package [17]. The CTEQ 6.6 M parton distribution functions (PDFs) [18] are used throughout. These models are effective theories and hold only for energies well below
*Full author list given at the end of the article.
Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distri-bution of this work must maintain attridistri-bution to the author(s) and the published article’s title, journal citation, and DOI.
MffiffiffiD(U). For a center of mass energy of scattering partons ^s
p
> MDðUÞ, following [16], the simulated cross
sec-tions of the graviton (unparticle) are suppressed by a factor MD4=^s2(U4=^s2). Since thepffiffiffi^sof these data is lower than the current limits on the MDðUÞ, the results are not affected by this treatment. The next-to-leading-order (NLO) QCD corrections to the direct graviton production in ADD model are sizable and dependent on the pT of the
recoiling parton [19]. For simplicity, the following K fac-tors (NLO=LO), which correspond to a graviton pT of
several hundredGeV=c, are used; 1:5 for ¼ 2, 3 and 1.4 for ¼ 4, 5, 6. The SM samples of Z þ jets and W þ jets, top quark pairs and QCD multijets are produced with the LO matrix element event generatorMADGRAPH[20]
inter-faced withPYTHIA6.420 [21] with tune D6T [22] for parton showering. Double counting by the matrix element calcu-lation and parton showering is resolved by using theMLM
matching prescription [23] as implemented in [20]. Data collected by several jet and EmissT triggers are used in this search. These trigger paths are fully efficient for events with a value of EmissT >120 GeV. Events are re-quired to have at least one good quality [24] primary vertex reconstructed within a 15 cm window along the beam axis around the detector center and have a transverse distance from the beam axis no more than 2 cm. Artificial signals in the calorimeter are identified by using criteria based either on energy sharing between neighbor-ing channels or timneighbor-ing requirements and are removed from the further reconstruction [25]. Beam halo and other beam-induced background events are rejected by requiring at least 25% of the tracks in events with ten or more tracks to be well reconstructed [26]. Events identified to contain muons from cosmic rays are also rejected. After these requirements, some beam-related and instrumental back-grounds still remain which are removed by additional cuts described below.
Jets and EmissT are reconstructed using a particle flow technique [27]. The algorithm reconstructs particles in each event, using the information from the tracker, the ECAL, and the HCAL calorimeters and the muon system. These particles are then used as input to the jet clustering algorithm which reconstructs jets using the anti-kT
algo-rithm [28] with a distance parameter of 0.5. The missing transverse energy vector is computed as the negative vector sum of the transverse momenta of all particles recon-structed in the event, and has a magnitude denoted by EmissT . Jet energies are corrected to particle level using pT- and -dependent correction factors. These corrections are derived from Monte Carlo simulation (MC) and are supplemented by a residual correction which is derived by measuring the pT balance in dijet events from collision
data [29]. To further suppress the instrumental and beam-related backgrounds, events are rejected if less than 15% of the energy of the highest pT jet is carried by charged hadrons or more than 80% of this energy is carried by
either neutral hadrons or photons. Such jets primarily arise from the instrumental noise where energy deposition is limited to one subdetector. Jets resulting from energy deposition by beam halo or cosmic muons do not have associated tracks and thus events with such energy deposits are also rejected by these cuts. All the events passing these selection cuts were visually inspected and were found to be good pp collision events. All these data cleanup require-ments reject 1.5% of the signal events as defined below.
Muon candidates are reconstructed by finding the compatible track segments in the silicon tracker and the muon detectors and requiring that the track formed using hits on these two track segments is of a good quality [30]. Muon candidates are required to be within jj < 2:1. Electron candidates are reconstructed starting from a clus-ter of energy deposits in the ECAL, which is then matched to hits in the silicon tracker. Electron candidates are re-quired to have jj < 1:44 or 1:56 < jj < 2:5 to avoid poorly instrumented regions. Electron candidates with sig-nificant mismeasurement in the ECAL or consistent with a photon conversion are rejected [31]. Muon and electron candidates are required to originate within 2 mm of the beam axis in the transverse plane. In order to avoid reject-ing events in which the muon (electron) originates from a jet, muon and electron candidates are also required to be spatially separated from jets by at leastffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi R ¼
ðÞ2þ ðÞ2
p
¼ 0:5. Here and are differences between the muon (electron) and the jet directions in the pseudorapidity and azimuthal angle (in radians), respec-tively. An isolation parameter RelIso is defined as the scalar sum of the transverse momenta of tracks and trans-verse energies in the ECAL and HCAL in a cone of radius R¼ 0:3 centered at the muon (electron) track direction, excluding the contribution from the candidate, divided by its pT. Candidates with RelIso values below 0.15 for muons
or 0.09 (0.04) for electrons in the central (forward) regions are considered isolated.
The signal sample is selected by requiring EmissT > 150 GeV and the most energetic jet (j1) to have pTðj1Þ >
110 GeV=c and jðj1Þj < 2:4. Events with more than two
jets (Njets>2) with pT above30 GeV=c are discarded. A second jet (j2) is allowed as signal events generally contain an initial or final state radiated jet provided its angular distance in azimuth from the highest-pT jet satisfies
ðj1; j2Þ < 2:0 radians. This angular requirement
sup-presses the QCD dijet events. Approximately 40% of the selected events have two jets. In order to reduce the back-ground from W and Z bosons and top quark decays, events with isolated electrons or muons with pT>10 GeV=c are rejected. Events with an isolated track with pT> 10 GeV=c are also eliminated, as they come primarily from -lepton decays. A track is considered isolated if the scalar sum of the pT of all tracks with pT>1 GeV=c
in the annulus of 0:02 < R < 0:3 around its direction is less than 10% of its pT.
The only significant remaining backgrounds after all requirements are from electroweak processes where the final state includes neutrino(s) and thus has genuine miss-ing transverse energy. TableI lists the number of events selected at each step of the analysis from data and simula-tion. The predicted event yields in the simulation are in reasonable agreement with those observed in the data.
The pTðj1Þ distribution after all signal selection cuts except the leading jet pTrequirement and EmissT distribution after all the signal selection cuts are shown in Fig.1. The SM predictions have been determined using MC simula-tion and have been normalized to the measured rate in data. The shape of the data distributions is well described by the SM predictions both for the leading jet pT spectrum and the EmissT spectrum.
Rather than using the background estimates from MC calculations shown in TableI, the Zþ jets with the Z boson decaying into a pair of neutrinos [denoted ZðÞ þ jets] and Wþ jets backgrounds are estimated from þ jet events derived from the data sample. This control sample is selected from the same set of triggers using the same requirements as for the signal sample, except that one or more well-reconstructed and isolated muons with pT >
20 GeV=c are explicitly required. To ensure a pure W þ jets sample, the transverse mass MT is required to be between 50 and100 GeV=c2. The transverse mass is de-fined as MT¼ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi 2p TEmissT ð1 cosðÞÞ q , where pT is the transverse momentum of the muon and is the angle between the muon pT and the EmissT vectors. Within the MT
window there are 113 single-muon events in the data, compared to 103 expected from MC [95.3 Wþ jets, 2.9 WðÞ þ jets, 2.4 Z þ jets, 2.4 tt, and 0.08 from QCD multijets]. The shapes of the muon transverse momentum and pseudorapidity distributions observed in the data are consistent with the expectation from SM sources. We estimate the number of Wþ jets events remaining in the signal sample to be117 16. This estimate is obtained by scaling the Wþ jets MC events passing the signal selec-tion requirement by the ratio of observed and predicted Wþ jets events in the muon sample. The uncertainty in-cludes the statistical uncertainty of the data muon sample, the statistics of the MC sample, the uncertainty on the non-WðÞ background contribution, and the uncertainty on the geometric and kinematic acceptance of the muons from the W decay.
To estimate the number of ZðÞ þ jets background events, the number of muon events in the MT window is rescaled by several factors: (i) the correction for contributions other than WðÞ þ jets, extracted from LO MC (0:923 0:071), (ii) the reciprocal of the kinematic and geometric acceptance determined from the simulated sample (2:40 0:12), (iii) inclusive WðÞ to inclusive ZðÞ conversion factor, ðZðÞÞ=ðWðÞÞ BRðZ ! Þ=BRðZ ! Þ ¼ ½1=10:74 [32] 5:942 [33] ¼ ð0:553 0:021Þ, (iv) the
TABLE I. Event yields in data and luminosity-normalized leading-order MC calculations after each analysis cut. Lepton removal eliminates events with isolated electrons, muons, or tracks with pT>10 GeV=c.
Requirement Wþ jets ZðÞ þ jets Zð‘þ‘Þ þ jets tt QCD Total MC Data
EmissT >150 GeV=c, jet cleaning 622 259 46.7 90.4 202 1220 1298
pTðj1Þ > 110 GeV=c, jðj1Þj < 2:4 583 245 43.4 76.9 201 1149 1193 Njets 2 446 201 34.3 11.3 74.3 767 778 ðj1; j2Þ < 2 370 182 29.5 9.1 6.3 597 596 Lepton removal 107 173 0.8 1.7 1.4 284 275 ) [GeV/c] 1 (Jet T p 0 100 200 300 400 500 600 Events / 25 GeV/c -1 10 1 10 2 10 3 10 4 10 ν ν Z ν l W t t QCD -l + l Z 2 δ 2 D ADD M Data CMS =7 TeV s at -1 L dt = 36 pb Jet1Pt [GeV] T miss E 150 250 350 450 550 650 Events / 25 GeV -1 10 1 10 2 10 3 10 4 10 Z νν ν l W t t QCD -l + l Z 2 δ 2 D ADD M Data CMS =7 TeV s at -1 L dt = 36 pb MET+mu
FIG. 1 (color online). Distribution of pTðj1Þ (top), and missing
transverse energy EmissT (bottom) requiring EmissT >150 GeV, Njets 2, jðj1Þj < 2:4, ðj1; j2Þ < 2, and lepton veto require-ments compared to SM contribution determined using MC simulation. The background is normalized to the measured rate in data. A representative ADD signal (with MD¼ 2 TeV=c2,
spectral shape differences in Wþ jets and Z þ jets for pTðW; ZÞ > 150 GeV=c (1:33 0:14), and (v) the
effi-ciency of the lepton veto in the signal region taken from simulation (0:95 0:02). All uncertainties include both statistical and systematic effects. The number of ZðÞ þ jets events in the signal region predicted from WðÞ þ jets events is 176 30. A crosscheck is made using an event sample of two opposite-sign muons with invariant mass consistent with that of a Z boson, and passing the signal selection cuts except the muon veto. In this sample, we observe 13 events which, after correcting for recon-struction efficiency, branching ratio, and detector accep-tance, gives a prediction of 162 45 for ZðÞ þ jets background. Other background contributions to the signal region from QCD, top pair production, and Zð‘þ‘Þ þ jets production are small and are estimated using Monte Carlo simulation. We assign 100% uncertainty on this estimate. To the check accuracy of the QCD simulation, the event yield in data after relaxing the ðj1; j2Þ cut to 3.0 was compared with the MC prediction and was found to agree well. In addition, relaxing the pTveto cut on additional jets
to 50 GeV=c increases the expected QCD background from 1.4 to only 2.1 events. The estimated number of events from all background sources is297 45. The un-certainty includes both statistical and systematic sources, with correlations taken into account.
To interpret the consistency of the observed number of events with the background expectation in the context of a model, we set exclusion limits for both the ADD model and the unparticle scenario. The upper limit on the number of non-SM events consistent with the measurements is deter-mined using a Bayesian method [33,34] with a flat prior for signal and a log-normal density function for the background.
The most important uncertainties related to signal mod-eling are (i) the jet energy scale, estimated by shifting the jet four vectors by an - and pT-dependent factor [29]
yielding a variation of 3%–7% (7.5%–11.5%) for the ADD (unparticle) signal acceptance, (ii) the jet energy resolu-tion, estimated from a þ jet sample [35] and resulting in a 0.3%–2.2% (0.6%–2.9%) uncertainty on the ADD (un-particle) signal acceptance, (iii) uncertainties on the PDFs, evaluated using a reweighting technique with the CTEQ6M parameterization [18] and resulting in a system-atic uncertainty of 1%–2% (3%–7%) for the ADD (unpar-ticle) signal acceptance, and (iv) a 4% uncertainty on the luminosity measurement [36]. The uncertainties for unpar-ticle signal are higher as it has a steeper EmissT spectrum. The total systematic uncertainties, dominated by the jet energy scale uncertainty, range from 6% to 13%.
Exclusion limits at 95% confidence level (C.L.) for the ADD model are given in Table II and are a significant improvement over the previous limits. From the ADD model with MD¼ 3 TeV=c2 and ¼ 3, which has signal acceptance of ð9:9 0:7Þ%, we evaluate a cross-section
upper limit for our selection of 18.7 pb and exclude new processes at 95% C.L. above this value that result in events passing our selection cuts and having the same acceptance. For unparticles with spin¼ 0, production cross sections above 54 pb are excluded at 95% C.L. for dU¼ 1:7 and U ¼ 1 TeV=c2. The limits for
other dU and U are comparable and are shown in
Fig. 2; for dU ¼ ð1:35; 1:40; 1:45; 1:50; 1:60; 1:70Þ,
unparticles are excluded at 95% C.L. for U<
ð18:9; 8:07; 4:57; 2:90; 1:62; 1:07Þ TeV=c2, compared to
the expected limits of ð13:4; 6:43; 3:75; 2:38; 1:46; 1:00Þ TeV=c2.
In summary, a search is performed for signatures from the ADD and unparticle models in events collected by the CMS experiment from pp collisions at pffiffiffis¼ 7 TeV. A final state with an energetic jet and a significant amount of missing transverse energy is analyzed from the first CMS data, corresponding to an integrated luminosity of 36 pb1. The QCD multijet background is reduced by
several orders of magnitude to a negligible level using topological cuts. Data enriched in WðÞ events are used to estimate the Wþ jets and ZðÞ þ jets events remain-ing in the signal region. The data are found to be in agreement with the expected contributions from SM
U d 1 1.2 1.4 1.6 1.8 2 (TeV) U Λ 0 2 4 6 8 10 12 14 16 18 20 CMS = 7 TeV s at -1 L dt = 36 pb
∫
= 2 TeV) s at = 1 fb int (L Obs. limit (95% CL) Exp. limit (95% CL) CDF+Theory limit -1FIG. 2 (color online). Observed and expected 95% C.L. lower limits on the allowed region of unparticle model parameters dU
andU, compared to those derived from CDF results [12,13].
TABLE II. Observed and expected 95% C.L. lower limits on the ADD model parameter MD (inTeV=c2) as functions of ,
with and without NLO K factors applied.
K factor LO Exp. LO Obs. NLO Exp. NLO Obs.
2 1.5 2.17 2.29 2.41 2.56
3 1.5 1.82 1.92 1.99 2.07
4 1.4 1.67 1.74 1.78 1.86
5 1.4 1.59 1.65 1.68 1.74
processes. Limits on parameters for ADD and unparticle models are derived and constitute a significant improve-ment over those set by previous experiimprove-ments.
We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administra-tive staff at CERN and other CMS institutes, and acknowl-edge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (U.K.); DOE and NSF (U.S.).
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S. Chatrchyan,1V. Khachatryan,1A. M. Sirunyan,1A. Tumasyan,1W. Adam,2T. Bergauer,2M. Dragicevic,2J. Ero¨,2 C. Fabjan,2M. Friedl,2R. Fru¨hwirth,2V. M. Ghete,2J. Hammer,2,bS. Ha¨nsel,2M. Hoch,2N. Ho¨rmann,2J. Hrubec,2 M. Jeitler,2W. Kiesenhofer,2M. Krammer,2D. Liko,2I. Mikulec,2M. Pernicka,2H. Rohringer,2R. Scho¨fbeck,2
J. Strauss,2A. Taurok,2F. Teischinger,2P. Wagner,2W. Waltenberger,2G. Walzel,2E. Widl,2C.-E. Wulz,2 V. Mossolov,3N. Shumeiko,3J. Suarez Gonzalez,3S. Bansal,4L. Benucci,4E. A. De Wolf,4X. Janssen,4J. Maes,4
T. Maes,4L. Mucibello,4S. Ochesanu,4B. Roland,4R. Rougny,4M. Selvaggi,4H. Van Haevermaet,4 P. Van Mechelen,4N. Van Remortel,4F. Blekman,5S. Blyweert,5J. D’Hondt,5O. Devroede,5R. Gonzalez Suarez,5
B. Clerbaux,6G. De Lentdecker,6V. Dero,6A. P. R. Gay,6G. H. Hammad,6T. Hreus,6P. E. Marage,6L. Thomas,6 C. Vander Velde,6P. Vanlaer,6V. Adler,7A. Cimmino,7S. Costantini,7M. Grunewald,7B. Klein,7J. Lellouch,7 A. Marinov,7J. Mccartin,7D. Ryckbosch,7F. Thyssen,7M. Tytgat,7L. Vanelderen,7P. Verwilligen,7S. Walsh,7 N. Zaganidis,7S. Basegmez,8G. Bruno,8J. Caudron,8L. Ceard,8E. Cortina Gil,8J. De Favereau De Jeneret,8 C. Delaere,8,bD. Favart,8A. Giammanco,8G. Gre´goire,8J. Hollar,8V. Lemaitre,8J. Liao,8O. Militaru,8C. Nuttens,8
S. Ovyn,8D. Pagano,8A. Pin,8K. Piotrzkowski,8N. Schul,8N. Beliy,9T. Caebergs,9E. Daubie,9G. A. Alves,10 L. Brito,10D. De Jesus Damiao,10M. E. Pol,10M. H. G. Souza,10W. L. Alda´ Ju´nior,11W. Carvalho,11 E. M. Da Costa,11C. De Oliveira Martins,11S. Fonseca De Souza,11L. Mundim,11H. Nogima,11V. Oguri,11 W. L. Prado Da Silva,11A. Santoro,11S. M. Silva Do Amaral,11A. Sznajder,11C. A. Bernardes,12,cF. A. Dias,12 T. R. Fernandez Perez Tomei,12E. M. Gregores,12,cC. Lagana,12F. Marinho,12P. G. Mercadante,12,cS. F. Novaes,12
Sandra S. Padula,12N. Darmenov,13,bV. Genchev,13,bP. Iaydjiev,13,bS. Piperov,13M. Rodozov,13S. Stoykova,13 G. Sultanov,13V. Tcholakov,13R. Trayanov,13A. Dimitrov,14R. Hadjiiska,14A. Karadzhinova,14V. Kozhuharov,14 L. Litov,14M. Mateev,14B. Pavlov,14P. Petkov,14J. G. Bian,15G. M. Chen,15H. S. Chen,15C. H. Jiang,15D. Liang,15
S. Liang,15X. Meng,15J. Tao,15J. Wang,15J. Wang,15X. Wang,15Z. Wang,15H. Xiao,15M. Xu,15J. Zang,15 Z. Zhang,15Y. Ban,16S. Guo,16Y. Guo,16W. Li,16Y. Mao,16S. J. Qian,16H. Teng,16B. Zhu,16W. Zou,16 A. Cabrera,17B. Gomez Moreno,17A. A. Ocampo Rios,17A. F. Osorio Oliveros,17J. C. Sanabria,17N. Godinovic,18
D. Lelas,18K. Lelas,18R. Plestina,18,dD. Polic,18I. Puljak,18Z. Antunovic,19M. Dzelalija,19V. Brigljevic,20 S. Duric,20K. Kadija,20S. Morovic,20A. Attikis,21M. Galanti,21J. Mousa,21C. Nicolaou,21F. Ptochos,21 P. A. Razis,21M. Finger,22M. Finger, Jr.,22A. Awad,23S. Khalil,23,eA. Radi,23,fA. Hektor,24M. Kadastik,24 M. Mu¨ntel,24M. Raidal,24L. Rebane,24A. Tiko,24V. Azzolini,25P. Eerola,25G. Fedi,25S. Czellar,26J. Ha¨rko¨nen,26
A. Heikkinen,26V. Karima¨ki,26R. Kinnunen,26M. J. Kortelainen,26T. Lampe´n,26K. Lassila-Perini,26S. Lehti,26 T. Linde´n,26P. Luukka,26T. Ma¨enpa¨a¨,26E. Tuominen,26J. Tuominiemi,26E. Tuovinen,26D. Ungaro,26
L. Wendland,26K. Banzuzi,27A. Karjalainen,27A. Korpela,27T. Tuuva,27D. Sillou,28M. Besancon,29 S. Choudhury,29M. Dejardin,29D. Denegri,29B. Fabbro,29J. L. Faure,29F. Ferri,29S. Ganjour,29F. X. Gentit,29
A. Givernaud,29P. Gras,29G. Hamel de Monchenault,29P. Jarry,29E. Locci,29J. Malcles,29M. Marionneau,29 L. Millischer,29J. Rander,29A. Rosowsky,29I. Shreyber,29M. Titov,29P. Verrecchia,29S. Baffioni,30F. Beaudette,30
L. Benhabib,30L. Bianchini,30M. Bluj,30,gC. Broutin,30P. Busson,30C. Charlot,30T. Dahms,30L. Dobrzynski,30 S. Elgammal,30R. Granier de Cassagnac,30M. Haguenauer,30P. Mine´,30C. Mironov,30C. Ochando,30P. Paganini,30
D. Sabes,30R. Salerno,30Y. Sirois,30C. Thiebaux,30B. Wyslouch,30,hA. Zabi,30J.-L. Agram,31,iJ. Andrea,31 D. Bloch,31D. Bodin,31J.-M. Brom,31M. Cardaci,31E. C. Chabert,31C. Collard,31E. Conte,31,iF. Drouhin,31,i C. Ferro,31J.-C. Fontaine,31,iD. Gele´,31U. Goerlach,31S. Greder,31P. Juillot,31M. Karim,31,iA.-C. Le Bihan,31 Y. Mikami,31P. Van Hove,31F. Fassi,32D. Mercier,32C. Baty,33S. Beauceron,33N. Beaupere,33M. Bedjidian,33 O. Bondu,33G. Boudoul,33D. Boumediene,33H. Brun,33J. Chasserat,33R. Chierici,33D. Contardo,33P. Depasse,33
H. El Mamouni,33J. Fay,33S. Gascon,33B. Ille,33T. Kurca,33T. Le Grand,33M. Lethuillier,33L. Mirabito,33 S. Perries,33V. Sordini,33S. Tosi,33Y. Tschudi,33P. Verdier,33D. Lomidze,34G. Anagnostou,35S. Beranek,35 M. Edelhoff,35L. Feld,35N. Heracleous,35O. Hindrichs,35R. Jussen,35K. Klein,35J. Merz,35N. Mohr,35 A. Ostapchuk,35A. Perieanu,35F. Raupach,35J. Sammet,35S. Schael,35D. Sprenger,35H. Weber,35M. Weber,35
B. Wittmer,35M. Ata,36E. Dietz-Laursonn,36M. Erdmann,36T. Hebbeker,36A. Hinzmann,36K. Hoepfner,36 T. Klimkovich,36D. Klingebiel,36P. Kreuzer,36D. Lanske,36,aJ. Lingemann,36C. Magass,36M. Merschmeyer,36
A. Meyer,36P. Papacz,36H. Pieta,36H. Reithler,36S. A. Schmitz,36L. Sonnenschein,36J. Steggemann,36 D. Teyssier,36M. Bontenackels,37M. Davids,37M. Duda,37G. Flu¨gge,37H. Geenen,37M. Giffels,37 W. Haj Ahmad,37D. Heydhausen,37F. Hoehle,37B. Kargoll,37T. Kress,37Y. Kuessel,37A. Linn,37A. Nowack,37 L. Perchalla,37O. Pooth,37J. Rennefeld,37P. Sauerland,37A. Stahl,37M. Thomas,37D. Tornier,37M. H. Zoeller,37
M. Aldaya Martin,38W. Behrenhoff,38U. Behrens,38M. Bergholz,38,jA. Bethani,38K. Borras,38A. Cakir,38 A. Campbell,38E. Castro,38D. Dammann,38G. Eckerlin,38D. Eckstein,38A. Flossdorf,38G. Flucke,38A. Geiser,38
J. Hauk,38H. Jung,38,bM. Kasemann,38I. Katkov,38,kP. Katsas,38C. Kleinwort,38H. Kluge,38A. Knutsson,38 M. Kra¨mer,38D. Kru¨cker,38E. Kuznetsova,38W. Lange,38W. Lohmann,38,jR. Mankel,38M. Marienfeld,38 I.-A. Melzer-Pellmann,38A. B. Meyer,38J. Mnich,38A. Mussgiller,38J. Olzem,38A. Petrukhin,38D. Pitzl,38 A. Raspereza,38A. Raval,38M. Rosin,38R. Schmidt,38,jT. Schoerner-Sadenius,38N. Sen,38A. Spiridonov,38 M. Stein,38J. Tomaszewska,38R. Walsh,38C. Wissing,38C. Autermann,39V. Blobel,39S. Bobrovskyi,39J. Draeger,39
J. Lange,39B. Mura,39S. Naumann-Emme,39F. Nowak,39N. Pietsch,39C. Sander,39H. Schettler,39P. Schleper,39 E. Schlieckau,39M. Schro¨der,39T. Schum,39J. Schwandt,39H. Stadie,39G. Steinbru¨ck,39J. Thomsen,39C. Barth,40
J. Bauer,40J. Berger,40V. Buege,40T. Chwalek,40W. De Boer,40A. Dierlamm,40G. Dirkes,40M. Feindt,40 J. Gruschke,40C. Hackstein,40F. Hartmann,40M. Heinrich,40H. Held,40K. H. Hoffmann,40S. Honc,40 J. R. Komaragiri,40T. Kuhr,40D. Martschei,40S. Mueller,40Th. Mu¨ller,40M. Niegel,40O. Oberst,40A. Oehler,40 J. Ott,40T. Peiffer,40G. Quast,40K. Rabbertz,40F. Ratnikov,40N. Ratnikova,40M. Renz,40C. Saout,40A. Scheurer,40 P. Schieferdecker,40F.-P. Schilling,40G. Schott,40H. J. Simonis,40F. M. Stober,40D. Troendle,40J. Wagner-Kuhr,40 T. Weiler,40M. Zeise,40V. Zhukov,40,kE. B. Ziebarth,40G. Daskalakis,41T. Geralis,41S. Kesisoglou,41A. Kyriakis,41
D. Loukas,41I. Manolakos,41A. Markou,41C. Markou,41C. Mavrommatis,41E. Ntomari,41E. Petrakou,41 L. Gouskos,42T. J. Mertzimekis,42A. Panagiotou,42E. Stiliaris,42I. Evangelou,43C. Foudas,43P. Kokkas,43 N. Manthos,43I. Papadopoulos,43V. Patras,43F. A. Triantis,43A. Aranyi,44G. Bencze,44L. Boldizsar,44C. Hajdu,44,b P. Hidas,44D. Horvath,44,lA. Kapusi,44K. Krajczar,44,mF. Sikler,44,bG. I. Veres,44,mG. Vesztergombi,44,mN. Beni,45 J. Molnar,45J. Palinkas,45Z. Szillasi,45V. Veszpremi,45P. Raics,46Z. L. Trocsanyi,46B. Ujvari,46S. B. Beri,47
V. Bhatnagar,47N. Dhingra,47R. Gupta,47M. Jindal,47M. Kaur,47J. M. Kohli,47M. Z. Mehta,47N. Nishu,47 L. K. Saini,47A. Sharma,47A. P. Singh,47J. Singh,47S. P. Singh,47S. Ahuja,48B. C. Choudhary,48P. Gupta,48
S. Jain,48S. Jain,48A. Kumar,48A. Kumar,48M. Naimuddin,48K. Ranjan,48R. K. Shivpuri,48S. Banerjee,49 S. Bhattacharya,49S. Dutta,49B. Gomber,49R. Khurana,49S. Sarkar,49R. K. Choudhury,50D. Dutta,50S. Kailas,50
V. Kumar,50P. Mehta,50A. K. Mohanty,50,bL. M. Pant,50P. Shukla,50T. Aziz,51M. Guchait,51,nA. Gurtu,51 M. Maity,51,oD. Majumder,51G. Majumder,51K. Mazumdar,51G. B. Mohanty,51A. Saha,51K. Sudhakar,51 N. Wickramage,51S. Banerjee,52S. Dugad,52N. K. Mondal,52H. Arfaei,53H. Bakhshiansohi,53,pS. M. Etesami,53
A. Fahim,53,pM. Hashemi,53A. Jafari,53,pM. Khakzad,53A. Mohammadi,53,qM. Mohammadi Najafabadi,53 S. Paktinat Mehdiabadi,53B. Safarzadeh,53M. Zeinali,53,rM. Abbrescia,54a,54bL. Barbone,54a,54bC. Calabria,54a,54b
A. Colaleo,54aD. Creanza,54a,54cN. De Filippis,54a,54c,bM. De Palma,54a,54bL. Fiore,54aG. Iaselli,54a,54c L. Lusito,54a,54bG. Maggi,54a,54cM. Maggi,54aN. Manna,54a,54bB. Marangelli,54a,54bS. My,54a,54cS. Nuzzo,54a,54b
N. Pacifico,54a,54bG. A. Pierro,54aA. Pompili,54a,54bG. Pugliese,54a,54cF. Romano,54a,54cG. Roselli,54a,54b G. Selvaggi,54a,54bL. Silvestris,54aR. Trentadue,54aS. Tupputi,54a,54bG. Zito,54aG. Abbiendi,55aA. C. Benvenuti,55a
D. Bonacorsi,55aS. Braibant-Giacomelli,55a,55bL. Brigliadori,55aP. Capiluppi,55a,55bA. Castro,55a,55b F. R. Cavallo,55aM. Cuffiani,55a,55bG. M. Dallavalle,55aF. Fabbri,55aA. Fanfani,55a,55bD. Fasanella,55a P. Giacomelli,55aM. Giunta,55aC. Grandi,55aS. Marcellini,55aG. Masetti,55bM. Meneghelli,55a,55bA. Montanari,55a
F. L. Navarria,55a,55bF. Odorici,55aA. Perrotta,55aF. Primavera,55aA. M. Rossi,55a,55bT. Rovelli,55a,55b G. Siroli,55a,55bR. Travaglini,55a,55bS. Albergo,56a,56bG. Cappello,56a,56bM. Chiorboli,56a,56b,bS. Costa,56a,56b
A. Tricomi,56a,56bC. Tuve,56a,56bG. Barbagli,57aV. Ciulli,57a,57bC. Civinini,57aR. D’Alessandro,57a,57b E. Focardi,57a,57bS. Frosali,57a,57bE. Gallo,57aS. Gonzi,57a,57bP. Lenzi,57a,57bM. Meschini,57aS. Paoletti,57a G. Sguazzoni,57aA. Tropiano,57a,bL. Benussi,58S. Bianco,58S. Colafranceschi,58,sF. Fabbri,58D. Piccolo,58 P. Fabbricatore,59R. Musenich,59A. Benaglia,60a,60bF. De Guio,60a,60b,bL. Di Matteo,60a,60bS. Gennai,60a,b
A. Ghezzi,60a,60bS. Malvezzi,60aA. Martelli,60a,60bA. Massironi,60a,60bD. Menasce,60aL. Moroni,60a M. Paganoni,60a,60bD. Pedrini,60aS. Ragazzi,60a,60bN. Redaelli,60aS. Sala,60aT. Tabarelli de Fatis,60a,60b S. Buontempo,61aC. A. Carrillo Montoya,61a,bN. Cavallo,61a,tA. De Cosa,61a,61bF. Fabozzi,61a,tA. O. M. Iorio,61a,b
L. Lista,61aM. Merola,61a,61bP. Paolucci,61aP. Azzi,62aN. Bacchetta,62aP. Bellan,62a,62bM. Biasotto,62a D. Bisello,62a,62bA. Branca,62aR. Carlin,62a,62bP. Checchia,62aT. Dorigo,62aF. Gasparini,62a,62bA. Gozzelino,62a
M. Gulmini,62aS. Lacaprara,62aI. Lazzizzera,62a,62cM. Margoni,62a,62bG. Maron,62aA. T. Meneguzzo,62a,62b M. Nespolo,62a,bL. Perrozzi,62a,bN. Pozzobon,62a,62bP. Ronchese,62a,62bF. Simonetto,62a,62bE. Torassa,62a M. Tosi,62a,62bA. Triossi,62aS. Vanini,62a,62bP. Zotto,62a,62bG. Zumerle,62a,62bP. Baesso,63a,63bU. Berzano,63a S. P. Ratti,63a,63bC. Riccardi,63a,63bP. Torre,63a,63bP. Vitulo,63a,63bC. Viviani,63a,63bM. Biasini,64a,64bG. M. Bilei,64a
B. Caponeri,64a,64bL. Fano`,64a,64bP. Lariccia,64a,64bA. Lucaroni,64a,64b,bG. Mantovani,64a,64bM. Menichelli,64a A. Nappi,64a,64bF. Romeo,64a,64bA. Santocchia,64a,64bS. Taroni,64a,64b,bM. Valdata,64a,64bP. Azzurri,65a,65c G. Bagliesi,65aJ. Bernardini,65a,65bT. Boccali,65a,bG. Broccolo,65a,65cR. Castaldi,65aR. T. D’Agnolo,65a,65c R. Dell’Orso,65aF. Fiori,65a,65bL. Foa`,65a,65cA. Giassi,65aA. Kraan,65aF. Ligabue,65a,65cT. Lomtadze,65a L. Martini,65a,uA. Messineo,65a,65bF. Palla,65aG. Segneri,65aA. T. Serban,65aP. Spagnolo,65aR. Tenchini,65a
G. Tonelli,65a,65b,bA. Venturi,65a,bP. G. Verdini,65aL. Barone,66a,66bF. Cavallari,66aD. Del Re,66a,66b E. Di Marco,66a,66bM. Diemoz,66aD. Franci,66a,66bM. Grassi,66a,bE. Longo,66a,66bP. Meridiani,66a
S. Nourbakhsh,66aG. Organtini,66a,66bF. Pandolfi,66a,66b,bR. Paramatti,66aS. Rahatlou,66a,66bC. Rovelli,66a,b N. Amapane,67a,67bR. Arcidiacono,67a,67cS. Argiro,67a,67bM. Arneodo,67a,67cC. Biino,67aC. Botta,67a,67b,b
N. Cartiglia,67aR. Castello,67a,67bM. Costa,67a,67bN. Demaria,67aA. Graziano,67a,67b,bC. Mariotti,67a M. Marone,67a,67bS. Maselli,67aE. Migliore,67a,67bG. Mila,67a,67bV. Monaco,67a,67bM. Musich,67a,67b M. M. Obertino,67a,67cN. Pastrone,67aM. Pelliccioni,67a,67bA. Potenza,67a,67bA. Romero,67a,67bM. Ruspa,67a,67c R. Sacchi,67a,67bV. Sola,67a,67bA. Solano,67a,67bA. Staiano,67aA. Vilela Pereira,67aS. Belforte,68aF. Cossutti,68a
G. Della Ricca,68a,68bB. Gobbo,68aD. Montanino,68a,68bA. Penzo,68aS. G. Heo,69S. K. Nam,69S. Chang,70 J. Chung,70D. H. Kim,70G. N. Kim,70J. E. Kim,70D. J. Kong,70H. Park,70S. R. Ro,70D. Son,70D. C. Son,70 T. Son,70Zero Kim,71J. Y. Kim,71S. Song,71S. Choi,72B. Hong,72M. Jo,72H. Kim,72J. H. Kim,72T. J. Kim,72
K. S. Lee,72D. H. Moon,72S. K. Park,72K. S. Sim,72M. Choi,73S. Kang,73H. Kim,73C. Park,73I. C. Park,73 S. Park,73G. Ryu,73Y. Choi,74Y. K. Choi,74J. Goh,74M. S. Kim,74J. Lee,74S. Lee,74H. Seo,74I. Yu,74 M. J. Bilinskas,75I. Grigelionis,75M. Janulis,75D. Martisiute,75P. Petrov,75T. Sabonis,75H. Castilla-Valdez,76
E. De La Cruz-Burelo,76I. Heredia-de La Cruz,76R. Lopez-Fernandez,76R. Magan˜a Villalba,76 A. Sa´nchez-Herna´ndez,76L. M. Villasenor-Cendejas,76S. Carrillo Moreno,77F. Vazquez Valencia,77 H. A. Salazar Ibarguen,78E. Casimiro Linares,79A. Morelos Pineda,79M. A. Reyes-Santos,79D. Krofcheck,80 J. Tam,80P. H. Butler,81R. Doesburg,81H. Silverwood,81M. Ahmad,82I. Ahmed,82M. I. Asghar,82H. R. Hoorani,82
W. A. Khan,82T. Khurshid,82S. Qazi,82G. Brona,83M. Cwiok,83W. Dominik,83K. Doroba,83A. Kalinowski,83 M. Konecki,83J. Krolikowski,83T. Frueboes,84R. Gokieli,84M. Go´rski,84M. Kazana,84K. Nawrocki,84 K. Romanowska-Rybinska,84M. Szleper,84G. Wrochna,84P. Zalewski,84N. Almeida,85P. Bargassa,85A. David,85
P. Faccioli,85P. G. Ferreira Parracho,85M. Gallinaro,85P. Musella,85A. Nayak,85J. Pela,85,bP. Q. Ribeiro,85 J. Seixas,85J. Varela,85S. Afanasiev,86I. Belotelov,86P. Bunin,86I. Golutvin,86V. Karjavin,86G. Kozlov,86 A. Lanev,86P. Moisenz,86V. Palichik,86V. Perelygin,86M. Savina,86S. Shmatov,86V. Smirnov,86A. Volodko,86
A. Zarubin,86V. Golovtsov,87Y. Ivanov,87V. Kim,87P. Levchenko,87V. Murzin,87V. Oreshkin,87I. Smirnov,87 V. Sulimov,87L. Uvarov,87S. Vavilov,87A. Vorobyev,87An. Vorobyev,87Yu. Andreev,88A. Dermenev,88 S. Gninenko,88N. Golubev,88M. Kirsanov,88N. Krasnikov,88V. Matveev,88A. Pashenkov,88A. Toropin,88 S. Troitsky,88V. Epshteyn,89V. Gavrilov,89V. Kaftanov,89,aM. Kossov,89,bA. Krokhotin,89N. Lychkovskaya,89
V. Popov,89G. Safronov,89S. Semenov,89V. Stolin,89E. Vlasov,89A. Zhokin,89E. Boos,90M. Dubinin,90,v L. Dudko,90A. Ershov,90A. Gribushin,90O. Kodolova,90I. Lokhtin,90A. Markina,90S. Obraztsov,90M. Perfilov,90
S. Petrushanko,90L. Sarycheva,90V. Savrin,90A. Snigirev,90V. Andreev,91M. Azarkin,91I. Dremin,91 M. Kirakosyan,91A. Leonidov,91S. V. Rusakov,91A. Vinogradov,91I. Azhgirey,92I. Bayshev,92S. Bitioukov,92
V. Grishin,92,bV. Kachanov,92D. Konstantinov,92A. Korablev,92V. Krychkine,92V. Petrov,92R. Ryutin,92 A. Sobol,92L. Tourtchanovitch,92S. Troshin,92N. Tyurin,92A. Uzunian,92A. Volkov,92P. Adzic,93,w M. Djordjevic,93D. Krpic,93,wJ. Milosevic,93M. Aguilar-Benitez,94J. Alcaraz Maestre,94P. Arce,94C. Battilana,94
E. Calvo,94M. Cepeda,94M. Cerrada,94M. Chamizo Llatas,94N. Colino,94B. De La Cruz,94A. Delgado Peris,94 C. Diez Pardos,94D. Domı´nguez Va´zquez,94C. Fernandez Bedoya,94J. P. Ferna´ndez Ramos,94A. Ferrando,94 J. Flix,94M. C. Fouz,94P. Garcia-Abia,94O. Gonzalez Lopez,94S. Goy Lopez,94J. M. Hernandez,94M. I. Josa,94
G. Merino,94J. Puerta Pelayo,94I. Redondo,94L. Romero,94J. Santaolalla,94M. S. Soares,94C. Willmott,94 C. Albajar,95G. Codispoti,95J. F. de Troco´niz,95J. Cuevas,96J. Fernandez Menendez,96S. Folgueras,96 I. Gonzalez Caballero,96L. Lloret Iglesias,96J. M. Vizan Garcia,96J. A. Brochero Cifuentes,97I. J. Cabrillo,97
A. Calderon,97S. H. Chuang,97J. Duarte Campderros,97M. Felcini,97,xM. Fernandez,97G. Gomez,97 J. Gonzalez Sanchez,97C. Jorda,97P. Lobelle Pardo,97A. Lopez Virto,97J. Marco,97R. Marco,97
C. Martinez Rivero,97F. Matorras,97F. J. Munoz Sanchez,97J. Piedra Gomez,97,yT. Rodrigo,97 A. Y. Rodrı´guez-Marrero,97A. Ruiz-Jimeno,97L. Scodellaro,97M. Sobron Sanudo,97I. Vila,97 R. Vilar Cortabitarte,97D. Abbaneo,98E. Auffray,98G. Auzinger,98P. Baillon,98A. H. Ball,98D. Barney,98 A. J. Bell,98,zD. Benedetti,98C. Bernet,98,dW. Bialas,98P. Bloch,98A. Bocci,98S. Bolognesi,98M. Bona,98 H. Breuker,98K. Bunkowski,98T. Camporesi,98G. Cerminara,98T. Christiansen,98J. A. Coarasa Perez,98B. Cure´,98 D. D’Enterria,98A. De Roeck,98S. Di Guida,98N. Dupont-Sagorin,98A. Elliott-Peisert,98B. Frisch,98W. Funk,98 A. Gaddi,98G. Georgiou,98H. Gerwig,98D. Gigi,98K. Gill,98D. Giordano,98F. Glege,98R. Gomez-Reino Garrido,98 M. Gouzevitch,98P. Govoni,98S. Gowdy,98L. Guiducci,98M. Hansen,98C. Hartl,98J. Harvey,98J. Hegeman,98 B. Hegner,98H. F. Hoffmann,98A. Honma,98V. Innocente,98P. Janot,98K. Kaadze,98E. Karavakis,98P. Lecoq,98 C. Lourenc¸o,98T. Ma¨ki,98M. Malberti,98L. Malgeri,98M. Mannelli,98L. Masetti,98A. Maurisset,98F. Meijers,98
S. Mersi,98E. Meschi,98R. Moser,98M. U. Mozer,98M. Mulders,98E. Nesvold,98,bM. Nguyen,98T. Orimoto,98 L. Orsini,98E. Perez,98A. Petrilli,98A. Pfeiffer,98M. Pierini,98M. Pimia¨,98D. Piparo,98G. Polese,98A. Racz,98
J. Rodrigues Antunes,98G. Rolandi,98,aaT. Rommerskirchen,98M. Rovere,98H. Sakulin,98C. Scha¨fer,98 C. Schwick,98I. Segoni,98A. Sharma,98P. Siegrist,98M. Simon,98P. Sphicas,98,bbM. Spiropulu,98,vM. Stoye,98 P. Tropea,98A. Tsirou,98P. Vichoudis,98M. Voutilainen,98W. D. Zeuner,98W. Bertl,99K. Deiters,99W. Erdmann,99
K. Gabathuler,99R. Horisberger,99Q. Ingram,99H. C. Kaestli,99S. Ko¨nig,99D. Kotlinski,99U. Langenegger,99 F. Meier,99D. Renker,99T. Rohe,99J. Sibille,99,ccA. Starodumov,99,ddL. Ba¨ni,100P. Bortignon,100L. Caminada,100,ee
N. Chanon,100Z. Chen,100S. Cittolin,100G. Dissertori,100M. Dittmar,100J. Eugster,100K. Freudenreich,100 C. Grab,100W. Hintz,100P. Lecomte,100W. Lustermann,100C. Marchica,100,eeP. Martinez Ruiz del Arbol,100 P. Milenovic,100,ffF. Moortgat,100C. Na¨geli,100,eeP. Nef,100F. Nessi-Tedaldi,100L. Pape,100F. Pauss,100T. Punz,100
A. Rizzi,100F. J. Ronga,100M. Rossini,100L. Sala,100A. K. Sanchez,100M.-C. Sawley,100B. Stieger,100 L. Tauscher,100,aA. Thea,100K. Theofilatos,100D. Treille,100C. Urscheler,100R. Wallny,100M. Weber,100
L. Wehrli,100J. Weng,100E. Aguilo,101C. Amsler,101V. Chiochia,101S. De Visscher,101C. Favaro,101 M. Ivova Rikova,101B. Millan Mejias,101P. Otiougova,101C. Regenfus,101P. Robmann,101A. Schmidt,101 H. Snoek,101Y. H. Chang,102K. H. Chen,102C. M. Kuo,102S. W. Li,102W. Lin,102Z. K. Liu,102Y. J. Lu,102 D. Mekterovic,102R. Volpe,102J. H. Wu,102S. S. Yu,102P. Bartalini,103P. Chang,103Y. H. Chang,103Y. W. Chang,103
Y. Chao,103K. F. Chen,103W.-S. Hou,103Y. Hsiung,103K. Y. Kao,103Y. J. Lei,103R.-S. Lu,103J. G. Shiu,103 Y. M. Tzeng,103M. Wang,103A. Adiguzel,104M. N. Bakirci,104,ggS. Cerci,104,hhC. Dozen,104I. Dumanoglu,104
E. Eskut,104S. Girgis,104G. Gokbulut,104I. Hos,104E. E. Kangal,104A. Kayis Topaksu,104G. Onengut,104 K. Ozdemir,104S. Ozturk,104,iiA. Polatoz,104K. Sogut,104,jjD. Sunar Cerci,104,hhB. Tali,104,hhH. Topakli,104,gg
D. Uzun,104L. N. Vergili,104M. Vergili,104I. V. Akin,105T. Aliev,105B. Bilin,105S. Bilmis,105M. Deniz,105 H. Gamsizkan,105A. M. Guler,105K. Ocalan,105A. Ozpineci,105M. Serin,105R. Sever,105U. E. Surat,105 E. Yildirim,105M. Zeyrek,105M. Deliomeroglu,106D. Demir,106,kkE. Gu¨lmez,106B. Isildak,106M. Kaya,106,ll O. Kaya,106,llM. O¨ zbek,106S. Ozkorucuklu,106,mmN. Sonmez,106,nnL. Levchuk,107F. Bostock,108J. J. Brooke,108
T. L. Cheng,108E. Clement,108D. Cussans,108R. Frazier,108J. Goldstein,108M. Grimes,108M. Hansen,108 D. Hartley,108G. P. Heath,108H. F. Heath,108L. Kreczko,108S. Metson,108D. M. Newbold,108,ooK. Nirunpong,108
A. Poll,108S. Senkin,108V. J. Smith,108S. Ward,108L. Basso,109,ppK. W. Bell,109A. Belyaev,109,ppC. Brew,109 R. M. Brown,109B. Camanzi,109D. J. A. Cockerill,109J. A. Coughlan,109K. Harder,109S. Harper,109J. Jackson,109
B. W. Kennedy,109E. Olaiya,109D. Petyt,109B. C. Radburn-Smith,109C. H. Shepherd-Themistocleous,109 I. R. Tomalin,109W. J. Womersley,109S. D. Worm,109R. Bainbridge,110G. Ball,110J. Ballin,110R. Beuselinck,110
O. Buchmuller,110D. Colling,110N. Cripps,110M. Cutajar,110G. Davies,110M. Della Negra,110W. Ferguson,110 J. Fulcher,110D. Futyan,110A. Gilbert,110A. Guneratne Bryer,110G. Hall,110Z. Hatherell,110J. Hays,110G. Iles,110 M. Jarvis,110G. Karapostoli,110L. Lyons,110B. C. MacEvoy,110A.-M. Magnan,110J. Marrouche,110B. Mathias,110 R. Nandi,110J. Nash,110A. Nikitenko,110,ddA. Papageorgiou,110M. Pesaresi,110K. Petridis,110M. Pioppi,110,qq
D. M. Raymond,110S. Rogerson,110N. Rompotis,110A. Rose,110M. J. Ryan,110C. Seez,110P. Sharp,110 A. Sparrow,110A. Tapper,110S. Tourneur,110M. Vazquez Acosta,110T. Virdee,110S. Wakefield,110N. Wardle,110
D. Wardrope,110T. Whyntie,110M. Barrett,111M. Chadwick,111J. E. Cole,111P. R. Hobson,111A. Khan,111 P. Kyberd,111D. Leslie,111W. Martin,111I. D. Reid,111L. Teodorescu,111K. Hatakeyama,112H. Liu,112 C. Henderson,113T. Bose,114E. Carrera Jarrin,114C. Fantasia,114A. Heister,114J. St. John,114P. Lawson,114 D. Lazic,114J. Rohlf,114D. Sperka,114L. Sulak,114A. Avetisyan,115S. Bhattacharya,115J. P. Chou,115D. Cutts,115
A. Ferapontov,115U. Heintz,115S. Jabeen,115G. Kukartsev,115G. Landsberg,115M. Luk,115M. Narain,115 D. Nguyen,115M. Segala,115T. Sinthuprasith,115T. Speer,115K. V. Tsang,115R. Breedon,116G. Breto,116 M. Calderon De La Barca Sanchez,116S. Chauhan,116M. Chertok,116J. Conway,116P. T. Cox,116J. Dolen,116
R. Erbacher,116E. Friis,116W. Ko,116A. Kopecky,116R. Lander,116H. Liu,116S. Maruyama,116T. Miceli,116 M. Nikolic,116D. Pellett,116J. Robles,116S. Salur,116T. Schwarz,116M. Searle,116J. Smith,116M. Squires,116 M. Tripathi,116R. Vasquez Sierra,116C. Veelken,116V. Andreev,117K. Arisaka,117D. Cline,117R. Cousins,117 A. Deisher,117J. Duris,117S. Erhan,117C. Farrell,117J. Hauser,117M. Ignatenko,117C. Jarvis,117C. Plager,117 G. Rakness,117P. Schlein,117,aJ. Tucker,117V. Valuev,117J. Babb,118A. Chandra,118R. Clare,118J. Ellison,118 J. W. Gary,118F. Giordano,118G. Hanson,118G. Y. Jeng,118S. C. Kao,118F. Liu,118H. Liu,118O. R. Long,118
A. Luthra,118H. Nguyen,118B. C. Shen,118,aR. Stringer,118J. Sturdy,118S. Sumowidagdo,118R. Wilken,118 S. Wimpenny,118W. Andrews,119J. G. Branson,119G. B. Cerati,119D. Evans,119F. Golf,119A. Holzner,119
R. Kelley,119M. Lebourgeois,119J. Letts,119B. Mangano,119S. Padhi,119C. Palmer,119G. Petrucciani,119H. Pi,119 M. Pieri,119R. Ranieri,119M. Sani,119V. Sharma,119S. Simon,119E. Sudano,119M. Tadel,119Y. Tu,119A. Vartak,119
S. Wasserbaech,119,rrF. Wu¨rthwein,119A. Yagil,119J. Yoo,119D. Barge,120R. Bellan,120C. Campagnari,120 M. D’Alfonso,120T. Danielson,120K. Flowers,120P. Geffert,120J. Incandela,120C. Justus,120P. Kalavase,120 S. A. Koay,120D. Kovalskyi,120V. Krutelyov,120S. Lowette,120N. Mccoll,120V. Pavlunin,120F. Rebassoo,120 J. Ribnik,120J. Richman,120R. Rossin,120D. Stuart,120W. To,120J. R. Vlimant,120A. Apresyan,121A. Bornheim,121
J. Bunn,121Y. Chen,121M. Gataullin,121Y. Ma,121A. Mott,121H. B. Newman,121C. Rogan,121K. Shin,121 V. Timciuc,121P. Traczyk,121J. Veverka,121R. Wilkinson,121Y. Yang,121R. Y. Zhu,121B. Akgun,122R. Carroll,122
T. Ferguson,122Y. Iiyama,122D. W. Jang,122S. Y. Jun,122Y. F. Liu,122M. Paulini,122J. Russ,122H. Vogel,122 I. Vorobiev,122J. P. Cumalat,123M. E. Dinardo,123B. R. Drell,123C. J. Edelmaier,123W. T. Ford,123A. Gaz,123 B. Heyburn,123E. Luiggi Lopez,123U. Nauenberg,123J. G. Smith,123K. Stenson,123K. A. Ulmer,123S. R. Wagner,123
S. L. Zang,123L. Agostino,124J. Alexander,124D. Cassel,124A. Chatterjee,124S. Das,124N. Eggert,124 L. K. Gibbons,124B. Heltsley,124W. Hopkins,124A. Khukhunaishvili,124B. Kreis,124G. Nicolas Kaufman,124
J. R. Patterson,124D. Puigh,124A. Ryd,124E. Salvati,124X. Shi,124W. Sun,124W. D. Teo,124J. Thom,124 J. Thompson,124J. Vaughan,124Y. Weng,124L. Winstrom,124P. Wittich,124A. Biselli,125G. Cirino,125D. Winn,125 S. Abdullin,126M. Albrow,126J. Anderson,126G. Apollinari,126M. Atac,126J. A. Bakken,126L. A. T. Bauerdick,126
A. Beretvas,126J. Berryhill,126P. C. Bhat,126I. Bloch,126F. Borcherding,126K. Burkett,126J. N. Butler,126 V. Chetluru,126H. W. K. Cheung,126F. Chlebana,126S. Cihangir,126W. Cooper,126D. P. Eartly,126V. D. Elvira,126
S. Esen,126I. Fisk,126J. Freeman,126Y. Gao,126E. Gottschalk,126D. Green,126K. Gunthoti,126O. Gutsche,126 J. Hanlon,126R. M. Harris,126J. Hirschauer,126B. Hooberman,126H. Jensen,126M. Johnson,126U. Joshi,126 R. Khatiwada,126B. Klima,126K. Kousouris,126S. Kunori,126S. Kwan,126C. Leonidopoulos,126P. Limon,126 D. Lincoln,126R. Lipton,126J. Lykken,126K. Maeshima,126J. M. Marraffino,126D. Mason,126P. McBride,126 T. Miao,126K. Mishra,126S. Mrenna,126Y. Musienko,126,ssC. Newman-Holmes,126V. O’Dell,126R. Pordes,126 O. Prokofyev,126N. Saoulidou,126E. Sexton-Kennedy,126S. Sharma,126W. J. Spalding,126L. Spiegel,126P. Tan,126 L. Taylor,126S. Tkaczyk,126L. Uplegger,126E. W. Vaandering,126R. Vidal,126J. Whitmore,126W. Wu,126F. Yang,126
F. Yumiceva,126J. C. Yun,126D. Acosta,127P. Avery,127D. Bourilkov,127M. Chen,127M. De Gruttola,127 G. P. Di Giovanni,127D. Dobur,127A. Drozdetskiy,127R. D. Field,127M. Fisher,127Y. Fu,127I. K. Furic,127 J. Gartner,127B. Kim,127J. Konigsberg,127A. Korytov,127A. Kropivnitskaya,127T. Kypreos,127K. Matchev,127 G. Mitselmakher,127L. Muniz,127C. Prescott,127R. Remington,127M. Schmitt,127B. Scurlock,127P. Sellers,127
N. Skhirtladze,127M. Snowball,127D. Wang,127J. Yelton,127M. Zakaria,127C. Ceron,128V. Gaultney,128 L. Kramer,128L. M. Lebolo,128S. Linn,128P. Markowitz,128G. Martinez,128D. Mesa,128J. L. Rodriguez,128 T. Adams,129A. Askew,129J. Bochenek,129J. Chen,129B. Diamond,129S. V. Gleyzer,129J. Haas,129S. Hagopian,129
V. Hagopian,129M. Jenkins,129K. F. Johnson,129H. Prosper,129L. Quertenmont,129S. Sekmen,129 V. Veeraraghavan,129M. M. Baarmand,130B. Dorney,130S. Guragain,130M. Hohlmann,130H. Kalakhety,130 R. Ralich,130I. Vodopiyanov,130M. R. Adams,131I. M. Anghel,131L. Apanasevich,131Y. Bai,131V. E. Bazterra,131
R. R. Betts,131J. Callner,131R. Cavanaugh,131C. Dragoiu,131L. Gauthier,131C. E. Gerber,131D. J. Hofman,131 S. Khalatyan,131G. J. Kunde,131F. Lacroix,131M. Malek,131C. O’Brien,131C. Silkworth,131C. Silvestre,131 A. Smoron,131D. Strom,131N. Varelas,131U. Akgun,132E. A. Albayrak,132B. Bilki,132W. Clarida,132F. Duru,132
C. K. Lae,132E. McCliment,132J.-P. Merlo,132H. Mermerkaya,132,ttA. Mestvirishvili,132A. Moeller,132 J. Nachtman,132C. R. Newsom,132E. Norbeck,132J. Olson,132Y. Onel,132F. Ozok,132S. Sen,132J. Wetzel,132 T. Yetkin,132K. Yi,132B. A. Barnett,133B. Blumenfeld,133A. Bonato,133C. Eskew,133D. Fehling,133G. Giurgiu,133
A. V. Gritsan,133Z. J. Guo,133G. Hu,133P. Maksimovic,133S. Rappoccio,133M. Swartz,133N. V. Tran,133 A. Whitbeck,133P. Baringer,134A. Bean,134G. Benelli,134O. Grachov,134R. P. Kenny Iii,134M. Murray,134 D. Noonan,134S. Sanders,134J. S. Wood,134V. Zhukova,134A. F. Barfuss,135T. Bolton,135I. Chakaberia,135
A. Ivanov,135S. Khalil,135M. Makouski,135Y. Maravin,135S. Shrestha,135I. Svintradze,135Z. Wan,135 J. Gronberg,136D. Lange,136D. Wright,136A. Baden,137M. Boutemeur,137S. C. Eno,137D. Ferencek,137 J. A. Gomez,137N. J. Hadley,137R. G. Kellogg,137M. Kirn,137Y. Lu,137A. C. Mignerey,137K. Rossato,137 P. Rumerio,137F. Santanastasio,137A. Skuja,137J. Temple,137M. B. Tonjes,137S. C. Tonwar,137E. Twedt,137
B. Alver,138G. Bauer,138J. Bendavid,138W. Busza,138E. Butz,138I. A. Cali,138M. Chan,138V. Dutta,138 P. Everaerts,138G. Gomez Ceballos,138M. Goncharov,138K. A. Hahn,138P. Harris,138Y. Kim,138M. Klute,138 Y.-J. Lee,138W. Li,138C. Loizides,138P. D. Luckey,138T. Ma,138S. Nahn,138C. Paus,138D. Ralph,138C. Roland,138
G. Roland,138M. Rudolph,138G. S. F. Stephans,138F. Sto¨ckli,138K. Sumorok,138K. Sung,138E. A. Wenger,138 R. Wolf,138S. Xie,138M. Yang,138Y. Yilmaz,138A. S. Yoon,138M. Zanetti,138S. I. Cooper,139P. Cushman,139 B. Dahmes,139A. De Benedetti,139P. R. Dudero,139G. Franzoni,139J. Haupt,139K. Klapoetke,139Y. Kubota,139
J. Mans,139N. Pastika,139V. Rekovic,139R. Rusack,139M. Sasseville,139A. Singovsky,139N. Tambe,139 L. M. Cremaldi,140R. Godang,140R. Kroeger,140L. Perera,140R. Rahmat,140D. A. Sanders,140D. Summers,140
K. Bloom,141S. Bose,141J. Butt,141D. R. Claes,141A. Dominguez,141M. Eads,141J. Keller,141T. Kelly,141 I. Kravchenko,141J. Lazo-Flores,141H. Malbouisson,141S. Malik,141G. R. Snow,141U. Baur,142A. Godshalk,142
I. Iashvili,142S. Jain,142A. Kharchilava,142A. Kumar,142S. P. Shipkowski,142K. Smith,142J. Zennamo,142 G. Alverson,143E. Barberis,143D. Baumgartel,143O. Boeriu,143M. Chasco,143S. Reucroft,143J. Swain,143 D. Trocino,143D. Wood,143J. Zhang,143A. Anastassov,144A. Kubik,144N. Odell,144R. A. Ofierzynski,144 B. Pollack,144A. Pozdnyakov,144M. Schmitt,144S. Stoynev,144M. Velasco,144S. Won,144L. Antonelli,145 D. Berry,145A. Brinkerhoff,145M. Hildreth,145C. Jessop,145D. J. Karmgard,145J. Kolb,145T. Kolberg,145 K. Lannon,145W. Luo,145S. Lynch,145N. Marinelli,145D. M. Morse,145T. Pearson,145R. Ruchti,145J. Slaunwhite,145
N. Valls,145M. Wayne,145J. Ziegler,145B. Bylsma,146L. S. Durkin,146J. Gu,146C. Hill,146P. Killewald,146 K. Kotov,146T. Y. Ling,146M. Rodenburg,146G. Williams,146N. Adam,147E. Berry,147P. Elmer,147D. Gerbaudo,147 V. Halyo,147P. Hebda,147A. Hunt,147J. Jones,147E. Laird,147D. Lopes Pegna,147D. Marlow,147T. Medvedeva,147
M. Mooney,147J. Olsen,147P. Piroue´,147X. Quan,147H. Saka,147D. Stickland,147C. Tully,147J. S. Werner,147 A. Zuranski,147J. G. Acosta,148X. T. Huang,148A. Lopez,148H. Mendez,148S. Oliveros,148J. E. Ramirez Vargas,148
A. Zatserklyaniy,148E. Alagoz,149V. E. Barnes,149G. Bolla,149L. Borrello,149D. Bortoletto,149M. De Mattia,149 A. Everett,149A. F. Garfinkel,149L. Gutay,149Z. Hu,149M. Jones,149O. Koybasi,149M. Kress,149A. T. Laasanen,149
N. Leonardo,149C. Liu,149V. Maroussov,149P. Merkel,149D. H. Miller,149N. Neumeister,149I. Shipsey,149 D. Silvers,149A. Svyatkovskiy,149H. D. Yoo,149J. Zablocki,149Y. Zheng,149P. Jindal,150N. Parashar,150 C. Boulahouache,151K. M. Ecklund,151F. J. M. Geurts,151B. P. Padley,151R. Redjimi,151J. Roberts,151J. Zabel,151
B. Betchart,152A. Bodek,152Y. S. Chung,152R. Covarelli,152P. de Barbaro,152R. Demina,152Y. Eshaq,152 H. Flacher,152A. Garcia-Bellido,152P. Goldenzweig,152Y. Gotra,152J. Han,152A. Harel,152D. C. Miner,152 D. Orbaker,152G. Petrillo,152W. Sakumoto,152D. Vishnevskiy,152M. Zielinski,152A. Bhatti,153R. Ciesielski,153
L. Demortier,153K. Goulianos,153G. Lungu,153S. Malik,153C. Mesropian,153M. Yan,153O. Atramentov,154 A. Barker,154D. Duggan,154Y. Gershtein,154R. Gray,154E. Halkiadakis,154D. Hidas,154D. Hits,154A. Lath,154 S. Panwalkar,154R. Patel,154K. Rose,154S. Schnetzer,154S. Somalwar,154R. Stone,154S. Thomas,154G. Cerizza,155
M. Hollingsworth,155S. Spanier,155Z. C. Yang,155A. York,155R. Eusebi,156W. Flanagan,156J. Gilmore,156 A. Gurrola,156T. Kamon,156V. Khotilovich,156R. Montalvo,156I. Osipenkov,156Y. Pakhotin,156J. Pivarski,156 A. Safonov,156S. Sengupta,156A. Tatarinov,156D. Toback,156M. Weinberger,156N. Akchurin,157C. Bardak,157
J. Damgov,157C. Jeong,157K. Kovitanggoon,157S. W. Lee,157T. Libeiro,157P. Mane,157Y. Roh,157A. Sill,157 I. Volobouev,157R. Wigmans,157E. Yazgan,157E. Appelt,158E. Brownson,158D. Engh,158C. Florez,158 W. Gabella,158M. Issah,158W. Johns,158P. Kurt,158C. Maguire,158A. Melo,158P. Sheldon,158B. Snook,158
S. Tuo,158J. Velkovska,158M. W. Arenton,159M. Balazs,159S. Boutle,159B. Cox,159B. Francis,159 R. Hirosky,159A. Ledovskoy,159C. Lin,159C. Neu,159R. Yohay,159S. Gollapinni,160R. Harr,160P. E. Karchin,160 P. Lamichhane,160M. Mattson,160C. Milste`ne,160A. Sakharov,160M. Anderson,161M. Bachtis,161J. N. Bellinger,161 D. Carlsmith,161S. Dasu,161J. Efron,161K. Flood,161L. Gray,161K. S. Grogg,161M. Grothe,161R. Hall-Wilton,161
M. Herndon,161A. Herve´,161P. Klabbers,161J. Klukas,161A. Lanaro,161C. Lazaridis,161J. Leonard,161 R. Loveless,161A. Mohapatra,161F. Palmonari,161D. Reeder,161I. Ross,161A. Savin,161W. H. Smith,161
J. Swanson,161and M. Weinberg161 (CMS Collaboration)
1Yerevan Physics Institute, Yerevan, Armenia 2
Institut fu¨r Hochenergiephysik der OeAW, Wien, Austria
3National Centre for Particle and High Energy Physics, Minsk, Belarus 4Universiteit Antwerpen, Antwerpen, Belgium
5Vrije Universiteit Brussel, Brussel, Belgium 6Universite´ Libre de Bruxelles, Bruxelles, Belgium
8Universite´ Catholique de Louvain, Louvain-la-Neuve, Belgium 9Universite´ de Mons, Mons, Belgium
10Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil 11Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil 12Instituto de Fisica Teorica, Universidade Estadual Paulista, Sao Paulo, Brazil
13Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria 14University of Sofia, Sofia, Bulgaria
15Institute of High Energy Physics, Beijing, China 16
State Key Lab. of Nucl. Phys. and Tech., Peking University, Beijing, China
17Universidad de Los Andes, Bogota, Colombia 18Technical University of Split, Split, Croatia
19University of Split, Split, Croatia 20Institute Rudjer Boskovic, Zagreb, Croatia
21University of Cyprus, Nicosia, Cyprus 22Charles University, Prague, Czech Republic
23Academy of Scientific Research and Technology of the Arab Republic of Egypt,
Egyptian Network of High Energy Physics, Cairo, Egypt
24National Institute of Chemical Physics and Biophysics, Tallinn, Estonia 25Department of Physics, University of Helsinki, Helsinki, Finland
26Helsinki Institute of Physics, Helsinki, Finland 27Lappeenranta University of Technology, Lappeenranta, Finland
28Laboratoire d’Annecy-le-Vieux de Physique des Particules, IN2P3-CNRS, Annecy-le-Vieux, France 29DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France
30Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France 31
Institut Pluridisciplinaire Hubert Curien, Universite´ de Strasbourg, Universite´ de Haute Alsace Mulhouse, CNRS/IN2P3, Strasbourg, France
32Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules (IN2P3), Villeurbanne, France 33Universite´ de Lyon, Universite´ Claude Bernard Lyon 1, CNRS-IN2P3, Institut de Physique Nucle´aire de Lyon, Villeurbanne, France
34Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia 35RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
36RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany 37RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
38Deutsches Elektronen-Synchrotron, Hamburg, Germany 39University of Hamburg, Hamburg, Germany 40Institut fu¨r Experimentelle Kernphysik, Karlsruhe, Germany 41Institute of Nuclear Physics ‘‘Demokritos,’’ Aghia Paraskevi, Greece
42University of Athens, Athens, Greece 43University of Ioa´nnina, Ioa´nnina, Greece
44KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary 45Institute of Nuclear Research ATOMKI, Debrecen, Hungary
46University of Debrecen, Debrecen, Hungary 47Panjab University, Chandigarh, India
48University of Delhi, Delhi, India 49Saha Institute of Nuclear Physics, Kolkata, India
50Bhabha Atomic Research Centre, Mumbai, India 51Tata Institute of Fundamental Research-EHEP, Mumbai, India 52Tata Institute of Fundamental Research-HECR, Mumbai, India 53
Institute for Research and Fundamental Sciences (IPM), Tehran, Iran
54aINFN Sezione di Bari, Bari, Italy 54bUniversita` di Bari, Bari, Italy 54cPolitecnico di Bari, Bari, Italy 55aINFN Sezione di Bologna, Bologna, Italy
55bUniversita` di Bologna, Bologna, Italy 56aINFN Sezione di Catania, Catania, Italy
56bUniversita` di Catania, Catania, Italy 57aINFN Sezione di Firenze, Firenze, Italy
57b
Universita` di Firenze, Firenze, Italy
58INFN Laboratori Nazionali di Frascati, Frascati, Italy 59INFN Sezione di Genova, Genova, Italy 60aINFN Sezione di Milano-Bicocca, Milano, Italy
61aINFN Sezione di Napoli, Napoli, Italy 61bUniversita` di Napoli ‘‘Federico II,’’ Napoli, Italy
62aINFN Sezione di Padova, Padova, Italy 62bUniversita` di Padova, Padova, Italy 62cUniversita` di Trento (Trento), Padova, Italy
63aINFN Sezione di Pavia, Pavia, Italy 63bUniversita` di Pavia, Pavia, Italy 64aINFN Sezione di Perugia, Perugia, Italy
64b
Universita` di Perugia, Perugia, Italy
65aINFN Sezione di Pisa, Pisa, Italy 65bUniversita` di Pisa, Pisa, Italy 65cScuola Normale Superiore di Pisa, Pisa, Italy
66aINFN Sezione di Roma, Roma, Italy 66bUniversita` di Roma ‘‘La Sapienza,’’ Roma, Italy
67aINFN Sezione di Torino, Torino, Italy 67bUniversita` di Torino, Torino, Italy
67cUniversita` del Piemonte Orientale (Novara), Torino, Italy 68aINFN Sezione di Trieste, Trieste, Italy
68bUniversita` di Trieste, Trieste, Italy 69Kangwon National University, Chunchon, Korea
70Kyungpook National University, Daegu, Korea
71Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea 72Korea University, Seoul, Korea
73University of Seoul, Seoul, Korea 74
Sungkyunkwan University, Suwon, Korea
75Vilnius University, Vilnius, Lithuania
76Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico 77Universidad Iberoamericana, Mexico City, Mexico
78Benemerita Universidad Autonoma de Puebla, Puebla, Mexico 79Universidad Auto´noma de San Luis Potosı´, San Luis Potosı´, Mexico
80University of Auckland, Auckland, New Zealand 81University of Canterbury, Christchurch, New Zealand
82National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan 83Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
84Soltan Institute for Nuclear Studies, Warsaw, Poland
85Laborato´rio de Instrumentac¸a˜o e Fı´sica Experimental de Partı´culas, Lisboa, Portugal 86Joint Institute for Nuclear Research, Dubna, Russia
87Petersburg Nuclear Physics Institute, Gatchina (St Petersburg), Russia 88Institute for Nuclear Research, Moscow, Russia
89Institute for Theoretical and Experimental Physics, Moscow, Russia 90Moscow State University, Moscow, Russia
91P.N. Lebedev Physical Institute, Moscow, Russia
92State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia 93University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia
94Centro de Investigaciones Energe´ticas Medioambientales y Tecnolo´gicas (CIEMAT), Madrid, Spain 95Universidad Auto´noma de Madrid, Madrid, Spain
96Universidad de Oviedo, Oviedo, Spain 97
Instituto de Fı´sica de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain
98CERN, European Organization for Nuclear Research, Geneva, Switzerland 99Paul Scherrer Institut, Villigen, Switzerland
100Institute for Particle Physics, ETH Zurich, Zurich, Switzerland 101Universita¨t Zu¨rich, Zurich, Switzerland
102National Central University, Chung-Li, Taiwan 103National Taiwan University (NTU), Taipei, Taiwan
104Cukurova University, Adana, Turkey
105Middle East Technical University, Physics Department, Ankara, Turkey 106
Bogazici University, Istanbul, Turkey
107National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine 108University of Bristol, Bristol, United Kingdom
109Rutherford Appleton Laboratory, Didcot, United Kingdom 110Imperial College, London, United Kingdom
111Brunel University, Uxbridge, United Kingdom 112Baylor University, Waco, Texas 76706, USA
113The University of Alabama, Tuscaloosa, Alabama 35487, USA 114Boston University, Boston, Massachusetts 02215, USA 115Brown University, Providence, Rhode Island 02912, USA 116University of California, Davis, Davis, California 95616, USA 117University of California, Los Angeles, Los Angeles, California 90095, USA
118University of California, Riverside, Riverside, California 92521, USA 119
University of California, San Diego, La Jolla, California 92093, USA
120University of California, Santa Barbara, Santa Barbara, California 93106, USA 121California Institute of Technology, Pasadena, California 91125, USA
122Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA 123University of Colorado at Boulder, Boulder, Colorado 80309, USA
124Cornell University, Ithaca, New York 14853, USA 125Fairfield University, Fairfield, Connecticut 06824, USA 126Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
127University of Florida, Gainesville, Florida 32611, USA 128Florida International University, Miami, Florida 33199, USA
129Florida State University, Tallahassee, Florida 32306, USA 130Florida Institute of Technology, Melbourne, Florida 32901, USA 131University of Illinois at Chicago (UIC), Chicago, Illinois 60607, USA
132The University of Iowa, Iowa City, Iowa 52242, USA 133Johns Hopkins University, Baltimore, Maryland 21218, USA
134The University of Kansas, Lawrence, Kansas 66045, USA 135
Kansas State University, Manhattan, Kansas 66506, USA
136Lawrence Livermore National Laboratory, Livermore, California 94720, USA 137University of Maryland, College Park, Maryland 20742, USA 138Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
139University of Minnesota, Minneapolis, Minnesota 55455, USA 140University of Mississippi, University, Mississippi 38677, USA 141University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA 142State University of New York at Buffalo, Buffalo, New York 14260, USA
143Northeastern University, Boston, Massachusetts 02115, USA 144Northwestern University, Evanston, Illinois 60208, USA 145University of Notre Dame, Notre Dame, Indiana 46556, USA
146The Ohio State University, Columbus, Ohio 43210, USA 147Princeton University, Princeton, New Jersey 08544, USA 148University of Puerto Rico, Mayaguez, Puerto Rico 00680 149Purdue University, West Lafayette, Indiana 47907, USA 150Purdue University Calumet, Hammond, Indiana 46323, USA
151Rice University, Houston, Texas 77251, USA 152University of Rochester, Rochester, New York 14627, USA 153The Rockefeller University, New York, New York 10021, USA
154Rutgers, the State University of New Jersey, Piscataway, New Jersey 08854, USA 155University of Tennessee, Knoxville, Tennessee 37996, USA
156Texas A&M University, College Station, Texas 77843, USA 157Texas Tech University, Lubbock, Texas 79409, USA 158
Vanderbilt University, Nashville, Tennessee 37235, USA
159University of Virginia, Charlottesville, Virginia 22901, USA 160Wayne State University, Detroit, Michigan 48202, USA 161University of Wisconsin, Madison, Wisconsin 53706, USA
aDeceased.
bAlso at CERN, European Organization for Nuclear Research, Geneva, Switzerland. cAlso at Universidade Federal do ABC, Santo Andre, Brazil.
dAlso at Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France. e
Also at British University, Cairo, Egypt.
fAlso at Ain Shams University, Cairo, Egypt.
gAlso at Soltan Institute for Nuclear Studies, Warsaw, Poland.
iAlso at Universite´ de Haute-Alsace, Mulhouse, France.
jAlso at Brandenburg University of Technology, Cottbus, Germany. kAlso at Moscow State University, Moscow, Russia.
lAlso at Institute of Nuclear Research ATOMKI, Debrecen, Hungary. mAlso at Eo¨tvo¨s Lora´nd University, Budapest, Hungary.
nAlso at Tata Institute of Fundamental Research-HECR, Mumbai, India. oAlso at University of Visva-Bharati, Santiniketan, India.
pAlso at Sharif University of Technology, Tehran, Iran. qAlso at Shiraz University, Shiraz, Iran.
rAlso at Isfahan University of Technology, Isfahan, Iran.
sAlso at Facolta` Ingegneria Universita` di Roma ‘‘La Sapienza,’’ Roma, Italy. tAlso at Universita` della Basilicata, Potenza, Italy.
uAlso at Universita` degli studi di Siena, Siena, Italy.
vAlso at California Institute of Technology, Pasadena, CA, USA. w
Also at Faculty of Physics of University of Belgrade, Belgrade, Serbia.
xAlso at University of California, Los Angeles, Los Angeles, CA, USA. yAlso at University of Florida, Gainesville, FL, USA.
zAlso at Universite´ de Gene`ve, Geneva, Switzerland. aaAlso at Scuola Normale e Sezione dell’ INFN, Pisa, Italy. bbAlso at University of Athens, Athens, Greece.
ccAlso at The University of Kansas, Lawrence, KS, USA.
ddAlso at Institute for Theoretical and Experimental Physics, Moscow, Russia. eeAlso at Paul Scherrer Institut, Villigen, Switzerland.
ffAlso at University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia. ggAlso at Gaziosmanpasa University, Tokat, Turkey.
hhAlso at Adiyaman University, Adiyaman, Turkey. iiAlso at The University of Iowa, Iowa City, IA, USA. jjAlso at Mersin University, Mersin, Turkey.
kkAlso at Izmir Institute of Technology, Izmir, Turkey. ll
Also at Kafkas University, Kars, Turkey.
mmAlso at Suleyman Demirel University, Isparta, Turkey. nnAlso at Ege University, Izmir, Turkey.
ooAlso at Rutherford Appleton Laboratory, Didcot, United Kingdom.
ppAlso at School of Physics and Astronomy, University of Southampton, Southampton, U.K. qqAlso at INFN Sezione di Perugia, Universita` di Perugia, Perugia, Italy.
rrAlso at Utah Valley University, Orem, UT, USA. ssAlso at Institute for Nuclear Research, Moscow, Russia.
