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STAR Update for Run 11

STAR Update for Run 11. Pibero Djawotho for the STAR Collaboration Texas A&M University 8 March 2011. Goals , current status and projections. Online ZDC polarimetry. Raw Asymmetry. Fill Number. BBC coincidence requirement imposed. Barrel EMC ‘hits’ ( η , Φ ) for events w/ no reco

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STAR Update for Run 11

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  1. STAR Update for Run 11 Pibero Djawotho for the STAR Collaboration Texas A&M University 8 March 2011

  2. Goals, current status and projections

  3. Online ZDC polarimetry Raw Asymmetry Fill Number BBC coincidence requirement imposed

  4. Barrel EMC ‘hits’ (η,Φ) for events w/ no reco TPC vertex L2BW Trigger Blue Abort Gap Yellow Abort Gap Φ Hit towers: ADC-ped>10 ie. ~150 MeV threshold η -Z (east) +Z (west)

  5. Conclusions • ZDC singles corrections now included in estimate of sampled luminosity  slight reduction compared to old values • Achieved < 50% of transverse goals for all triggers • Online ZDC polarimetry up and running • Background appears to originate mostly from yellow beam and seen by BEMC, EEMC and BTOF  ongoing investigation

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