Mattione Study b1pi

From GlueXWiki
Jump to: navigation, search

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-

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
Mattione Study b1pi NumTracks Photons.gif
Mattione Study b1pi NumTracks PiPluses.gif
Mattione Study b1pi NumTracks PiMinuses.gif
Mattione Study b1pi NumTracks Protons.gif


Invariant Masses

Mattione Study b1pi InvMass PiZero.gif
Mattione Study b1pi InvMass RhoZero.gif
Mattione Study b1pi InvMass Omega.gif
Mattione Study b1pi InvMass B1Plus.gif
Mattione Study b1pi InvMass X2000.gif


Comparison of Generated and Reconstructed Tracks

  • NOTE: There was no observed φ-dependence on track reconstruction distributions.

γ's

  • p vs θ distributions for the generated & reconstructed photons:
generated, 06-12-2011
reconstructed 06-12-2011


π+'s

  • p vs θ distributions for the generated & reconstructed π+'s:
generated 06-12-2011
reconstructed 06-12-2011


π-'s

  • p vs θ distributions for the generated & reconstructed π-'s:
generated 06-12-2011
reconstructed 06-12-2011


p's

  • p vs θ distributions for the generated & reconstructed protons:
generated 06-12-2011
reconstructed 06-12-2011