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Decadal Plan for the PHENIX Experiment at RHIC (2011-2020): Advancements in Heavy Ion Physics

The PHENIX Experiment at RHIC outlines a decadal plan (2011-2020) focusing on enhancing the understanding of heavy ion physics. This includes replacing the central magnet with a solenoid and integrating an advanced electromagnetic calorimeter (EMCal) and hadronic calorimeter (HCal). Key research areas investigate quark-gluon plasma dynamics, parton interactions, and nucleon structure through sophisticated detectors and strategic measurements. This plan aims to delve into phenomena such as color charge nature, energy loss mechanisms, and spin-dependent interactions in high-energy collisions.

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Decadal Plan for the PHENIX Experiment at RHIC (2011-2020): Advancements in Heavy Ion Physics

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Presentation Transcript

  1. The PHENIX Experiment at RHIC Decadal 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)

  2. New mid-rapidity detector layers Upsilons

  3. Heavy Ion Physics: Midterm Physics Plan VTX FVTX x coverage FOCAL??

  4. 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

  5. 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.

  6. 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

  7. e-A Physics with sPHENIX

  8. Projected Luminosities & Strawman PHENIX Run Plan

  9. (about 5 pages) (267 pages)

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