Difference between revisions of "Mattione Update 04302014"

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(π+ PID)
(π+ PID)
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* 2D Pulls of &pi;<sup>+</sup>'s (t<sub>Thrown</sub> - t<sub>Reconstructed</sub>)/&sigma;<sub>t (Reconstructed)</sub> with no cuts except +/- 5 &sigma; thrown matching.  
 
* 2D Pulls of &pi;<sup>+</sup>'s (t<sub>Thrown</sub> - t<sub>Reconstructed</sub>)/&sigma;<sub>t (Reconstructed)</sub> with no cuts except +/- 5 &sigma; thrown matching.  
 
* Notes:
 
* Notes:
 +
** Yellow line at t = 0.0 just to guide the eye.
 
** low-&theta; tracks being matched to ST & BCAL hits indicates problems with hit-matching criteria.  
 
** low-&theta; tracks being matched to ST & BCAL hits indicates problems with hit-matching criteria.  
 
** For track time, order of preference is: BCAL, TOF, FCAL, TBT
 
** For track time, order of preference is: BCAL, TOF, FCAL, TBT

Revision as of 21:30, 28 April 2014

n3pi Cut Study

  • Run 9003 (no EM background), ~5 MegaEvents, searching for γp→π+π+π-(n)
  • Reconstructed Signal Combos (DCutAction_ThrownTopology, DCutAction_AllTruePID) (% is Signal Remaining)
    • All is 34361 combos (events) of 59562 thrown n3pi in ~5 MegaEvent sample: 57.7% Acceptance
    • +/- 5σ cut on Thrown <---> Detected matching for DCutAction_AllTruePID.
Mattione Update 04212014 n3piCutStudy Signal.png


π+ PID

  • 1D Pulls of skim tracks (tThrown - tReconstructed)/σt (Reconstructed)
    • With DCutAction_ThrownTopology, DCutAction_AllTruePID @ +/- 5 σ matching.
    • TBT is time-based tracking.
    • For track time, order of preference is: BCAL, TOF, FCAL, TBT
BCAL
TOF
TBT
FCAL


  • 2D Pulls of π+'s (tThrown - tReconstructed)/σt (Reconstructed) with no cuts except +/- 5 σ thrown matching.
  • Notes:
    • Yellow line at t = 0.0 just to guide the eye.
    • low-θ tracks being matched to ST & BCAL hits indicates problems with hit-matching criteria.
    • For track time, order of preference is: BCAL, TOF, FCAL, TBT
BCAL vs p
BCAL vs θ


TBT vs p
TBT vs θ


ST vs p
ST vs θ


TOF vs p
FCAL vs p