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Current PHENIX pt resolution

Current PHENIX pt resolution. Upgraded improves D pt/pt 5X at 40 GeV/c for W  e . West carriage Resolution. East carriage Resolution. Schedule and Cost. 24 Months from Start to Finish Cost $900k Electronics $250k Electronics Infrastructure

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Current PHENIX pt resolution

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  1. Current PHENIX pt resolution Upgraded improves Dpt/pt 5X at 40 GeV/c for W  e  West carriage Resolution East carriage Resolution

  2. Schedule and Cost • 24 Months from Start to Finish • Cost • $900k Electronics • $250k Electronics Infrastructure • $200k Mechanics(Detector+Infrastructure+Radiators) • $100k Gas System Upgrade Total $1.45M Capital + $100k R&D Operating $500k Xenon Gas Operating Summary • High pt upgrades extend PHENIX’s strengths into new and exciting areas of physics • Extensive list of topics to investigate in AA, pA and pp • Well matched to machine plans for increased luminosity

  3. High pt Physics with PHENIX • Heavy Flavor Physics • J/ Y suppression in A-A vs Centrality,pt, e • J/ Y, Y’ , U production /suppression • J/ Y vs Charm, DY continuum via single leptons, em pairs • J/ Y at different rapidities central vs muon arms • Single Leptons as probe of B production, B contribution to J/ Y • Charm production, high pt photons and J/ Y , Y’ in pA physics to disentangle gluon shadowing, nuclear absorption • Jet Physics • Jet quenching at high pt with leading charged particle >5 GeV/c • Spin Physics • W+/W- production, W  e 

  4. Charged Particle Rejection with TRD 90% Electron Efficiency 4 plane TRD 6 plane TRD

  5. PHENIX Central Spectrometer Upgrade high pt resolution in the West arm and electron ID in both arms with Tracking/TRD • Increases pt resolution in West Arm by 5X at 40 GeV/c • Increases electron ID capability 100X for pt > 3 GeV/c • Enhances EMCal e/hadron rejection with better E-p match • Combine TRD, RICH and EMCal for particle ID coverage upto 12 GeV/c

  6. Expected Statistics for High Luminosity RHIC Operation Assume: • L of RHIC 10X current design value, Au-Au, 30 week run, sNN(J/Y)=400 nb

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