Mattione Update 04302014

From GlueXWiki
Revision as of 20:56, 28 April 2014 by Pmatt (Talk | contribs) (π+ PID)

Jump to: navigation, search

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

  • Pulls (tThrown - tReconstructed)/σt (Reconstructed) when +/- 5 σ matches to all thrown particles.
BCAL
TOF
CDC
FCAL