Mattione Update 06202011

b1pi Overview

• Generated 10000 X(2000) -> b₁π^-; events following the instructions here.
• Decay chain:

 gamma p -> p X(2000)0
               |
               |-> b1(1235)+ π-
                    |
                    |-> ω π+
                          |
                          |-> ρ0 π0
                               |   |-> γ γ
                               |
                               |-> π+ π-

b1pi Event Count

# Generated events = 10000

# Events with 2+ photons = 9660
# Events with 2+ π+'s = 7642
# Events with 2+ π-'s = 8156
# Events with 2+ protons = 1040 (should only be 1 !!)
# Events with enough tracks for the X (2+ photons, 2+ π+'s, 2+ π-'s) = 6076

b1pi Invariant Masses

Classes

Current Class Structure

                                    DPhysicsEvent
                                         |
                                    DParticleSet 
                                  /      |       \
 vector < DVertex::shower_info_t >    DVertex     vector < vector < DVertex::track_info_t > >
                                    /         \
   vector < DVertex::shower_info_t >           vector < vector < DVertex::track_info_t > >

*DVertex::shower_info_t is a class that inherits from DKinematicData and contains pointers to DBCALShower and DFCALShower objects
*DVertex::track_info_t is a struct that contains a DTrackTimeBased object, along with the projected time at the vertex and the FOM