Mattione Study b1pi

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Revision as of 15:09, 2 June 2011 by Pmatt (Talk | contribs) (Invariant Masses)

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Overview

  • Generated 100000 X(2000) -> b1π-; events following the instructions here.
    • Except ran by linking against the sim-recon-2011-03-31 build. All plots & statistics are from this build unless indicated otherwise.
  • Decay chain:
 gamma p -> p X(2000)0
               |
               |-> b1(1235)+ π-
                    |
                    |-> ω π+
                          |
                          |-> ρ0 π0
                               |   |-> γ γ
                               |
                               |-> π+ π-

Event Count

# Generated events = 100000

# Events with 2+ photons = 57866
# Events with 2+ π+'s = 29372
# Events with 2+ π-'s = 30634
# Events with enough tracks for the X (2+ photons, 2+ π+'s, 2+ π-'s) = 4760

# Events with at least one π0 candidate: 57866
# Events with at least one ρ0 candidate: 58466
# Events with at least one ω candidate: 31012
# Events with at least one b1 candidate: 12163
# Events with at least one X(2000)0 candidate: 4760
  • # Photons per Event
Mattione Study b1pi NumTracks Photons.gif


  • # π+'s per Event
Mattione Study b1pi NumTracks PiPluses.gif


  • # π-'s per Event
Mattione Study b1pi NumTracks PiMinuses.gif


  • # Protons per Event
Mattione Study b1pi NumTracks Protons.gif



Invariant Masses

π0

  • π0
Mattione Study b1pi InvMass PiZero.gif


ρ0

  • ρ0
Mattione Study b1pi InvMass RhoZero.gif


ω

  • ω
Mattione Study b1pi InvMass Omega.gif


b1

  • b1
Mattione Study b1pi InvMass B1Plus.gif


X(2000)0

  • X(2000)0
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, tagged release 06-02-2011
reconstructed tagged release 06-02-2011


π+'s

  • p vs θ distributions for the generated & reconstructed π+'s:
generated, tagged release 06-02-2011
reconstructed tagged release 06-02-2011


π-'s

  • p vs θ distributions for the generated & reconstructed π-'s:
generated, tagged release 06-02-2011
reconstructed tagged release 06-02-2011


p's

  • p vs θ distributions for the generated & reconstructed protons:
generated, tagged release 06-02-2011
reconstructed tagged release 06-02-2011