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BSMD energy scale uncertainty

1. Dataset

  • 2005 p+p HighTower-1 data
  • Single-particle Monte Carlo simulation
  • Default cluster finder

Run Dependent Trigger Distribution

The quantity being plotted below is defined as, (for each Eta bin)

Bsmd Status Presentation for EMC Meeting

Remarks on the EEMC calibration in 2006

 
Abstract: We examine pi0 invariant mass spectra from the 2006 run, using isolated pions with no energy deposited in the 1st preshower layer w/in a radius of 0.3.   An invariant mass of 139.0 +/- 0.3 MeV is reconstruced, with no observed dependence on pseudorapidity.  Conversion rates observed by the preshower layers for identified pi0 decays, indicate that, on average, there are three photons w/in the cluster used to measure the energy of the pion.
 
Contents:

run10156038

 

QM09 Proceedings

QM09 Proceedings - Chris Perkins

dAu east-west DCA asymmetry

Looking at the signed DCA of tracks on the east half of the TPC minus the west half of the TPC for Run 8 dAu data gives the following results using the calibrations for SpaceCharge and GridLeak ins

QA for 05/12/09 - 05/18/2009

run10152001

 

Notes on pp2006 pi0 production for conversion rate estimation

Identified Pi0 Sample to Determine Background Conversion Rates