hitToTrueXP Module
Valerio Bertacchi
Università di Pisa
Long-term purpose
Continue the work of Giulia:
- define a criterion and select tracks on «goodness» of reconstrcution - Improve the definition of efficiency to take care of tracks hard to find
Short-term purpose
- Bulid an object (TTree) that contains all useful hits/tracks information to allow analysis
[DONE]- Analyize hits/tracks distributions
[TO DO]HitToTrueXP module
The Module is splitted in 2 sub-modules: generation and analysis
hitToTrueXP_generation:
- generate, simulate and reconstruct events
- Current configuration generate 1000 events of Y(4s)
hitToTrueXP_analysis:
- Takes from generation MC-Truth information (MCParticles, MCTrueHits) - Builds a class (hitToTrueXP class) that organize useful informations
- Loops over MCParticles (not on TrueHits!) to fill the Tree
HitToTrueXP class
- Each element of the class represent a MCParticle
- Each element has vector-members filled with SVDTrueHits information
The members are:
- position in local and global coordinates
- Momentum in local and global coordinates - PDG ID
- Position and Momentum at vertex - Time
- Track Parameters
Track Parameters
[Eugenio, Oliver, Tobi,
helices:the nitty-gritty of their Parametrization, B2GM 2015 ]
Validation of the module
good behaviour
Example of track parameter analysis (1)
Analysis of d0 (distance POCA-Zaxis):
- Expected constant in hits of the same track
- Smearing for material effect (momentum dependent)
Example of track parameter analysis (2)
Larger width Low statistic (under 100 MeV/c)
