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Explore QCD Emerging Property

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Presentation on theme: "Explore QCD Emerging Property"— Presentation transcript:

1 Explore QCD Emerging Property
Explore QCD Emerging Property at RHIC Nu Xu (1) College of Physical Science & Technology, Central China Normal University, China (2) Nuclear Science Division, Lawrence Berkeley National Laboratory, USA Many Thanks to the Organizers!

2 QCD in Twenty-One Century
Higgs Particle – - Origin of Mass - SM  The Theory (2) QCD Phase Structure – - Confinement - χC symmetry - Critical point, phase boundaries - Nucleon helicity structure - … - Non-linear QCD at small-x Emerging properties with QCD degrees of freedom!

3 STAR Physics Focus Polarized p+p Program - Study proton intrinsic
properties eRHIC (eSTAR) Small-x Physics Program - Study low-x properties, initial condition, search for CGC - Study elastic and inelastic processes in pp2pp 1) At 200 GeV at RHIC - Study medium properties, EoS - pQCD in hot and dense medium 2) RHIC Beam Energy Scan (BES) - Search for the QCD critical point - Chiral symmetry restoration

4 The QCD Phase Diagram and High-Energy Nuclear Collisions
2 TE, Quarkyonic RHIC, SPS, FAIR 3 Phase Boundary RHIC, FAIR, NICA Tini, TC LHC, RHIC 1 1 2 1st order phase transition 3 Cross over Critical Point

5 STAR Experiment pp2pp’ pp2pp’ HLT MTD EMC Barrel MRPC ToF Barrel
EMC End Cap FMS BBC FHC FPD TPC pp2pp’ pp2pp’ PMD trigger computing DAQ1000 COMPLETE HLT HFT FGT Ongoing R&D

6 STAR Detector Configurations
Before 2010: TPC 2010: TPC + TOF 2013: TPC + TOF + MTD’ 2014: TPC + TOF + HFT + MTD Large coverage, excellent particle ID, fast DAQ - detector all particles produced at RHIC, except neutrinos - multiple fold correlation measurements - BES-I: 7.7 < √sNN < 39GeV // BES-II: √sNN < 20GeV, high luminosity - Probes: bulk, penetrating, and bulk-penetrating  STAR: Perfect Mid-y Collider Experiment

7 TOF and di-lepton Measurements
di-leptons: Bulk Penetrating Probe!

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