Difference between revisions of "Mattione Study b1pi"

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(Event Count)
(Overview)
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== Overview ==
 
== Overview ==
  
* Generated 100000 X(2000) -> b<sub>1</sub>&pi;<sup>-</sup>; events following the instructions [http://www.jlab.org/Hall-D/software/wiki/index.php/HOWTO_simulate_and_analyze_b1pi_events here].
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* Generated 10000 X(2000) -> b<sub>1</sub>&pi;<sup>-</sup>; events following the instructions [http://www.jlab.org/Hall-D/software/wiki/index.php/HOWTO_simulate_and_analyze_b1pi_events here].
** Except ran by linking against the sim-recon-2011-03-31 build.  All plots & statistics are from this build unless indicated otherwise. 
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* Decay chain:
 
* Decay chain:
 
<pre>
 
<pre>

Revision as of 15:14, 2 June 2011

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 = 9669
# Events with 2+ π+'s = 7749
# Events with 2+ π-'s = 8248
# Events with 2+ protons = 1040 (should only be 1 !!)
# Events with enough tracks for the X (2+ photons, 2+ π+'s, 2+ π-'s) = 6259
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, 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