The PHENIX Experiment at RHIC Decadal Plan 2011–2020
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Transcript of The PHENIX Experiment at RHIC Decadal Plan 2011–2020
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The PHENIX Experiment at RHICDecadal Plan 2011–2020
• replace central magnet with solonoid• replace central arms with compact EMCal & HCal• replace South muon arm with DIS-style electron spectrometer
(2016-2018)
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New mid-rapidity detector layers
Upsilons
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Heavy Ion Physics: Midterm Physics Plan
FOCAL??
FVTX x coverage
VTX
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Heavy Ion Physics: sPHENIX Physics Plan• Are quarks strongly coupled to the quark-gluon plasma at all interaction distance scales?
• What are the detailed mechanisms for parton-QGP interactions and responses? Are the interactions coherent over the entire medium length scale, what are the dominant energy loss mechanisms?
• Are there quasi-particles in the medium? What is their mass and width?
• Is there a relevant color screening length in the quark-gluon plasma?
• How is rapid equilibration and entropy production achieved? • What is the nature of color charge in large nuclei? What role does gluon saturation and the EMC effect play in nucleus-nucleus collisions? How do these modifications evolve?
new mid-rapidity detector
new forward rapidity detector
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Nucleon Structure Physics: Midterm Physics Plan
• Constraining the flavor-separated sea quark helicity distributions via W measurements in longitudinally polarized $p+p$ collisions at sqrt(s) = 500 GeV.
• Probing Delta-g(x) down to lower momentum fractions in longitudinally polarized p+p collisions at sqrt(s) = 500 GeV.
• Explore several transverse spin measurements in transversely polarized p+p collisions at sqrt(s)=200 GeV and lower energies.
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Nucleon Structure Physics: sPHENIX Physics Plan• Dynamical Origins of Spin-Dependent Interactions
• New Probes of Longitudinal Spin Effects
• Measurements with Polarized He3 and Increased Energies
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e-A Physics with sPHENIX
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Projected Luminosities & Strawman PHENIX Run Plan
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(about 5 pages)
(267 pages)