1 / 22

Outline

major
Download Presentation

Outline

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. February 25, 2013STAR Experiment at RHICStudy emergent properties of matter with QCD degrees of freedomNu Xu(1) College of Physical Science & Technology, Central China Normal University, Wuhan, 430079, China (2) Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA

  2. Outline • Introduction: • Study the emergent properties of QCD matter • (3) Selected Recent Results • - On the new ΔG results • - Di-electron measurements • RHIC BES-I results • (3) STAR Detector and Forward Expansion

  3. STAR Collaboration STAR Experiment STAR Experiment at RHIC ( http://www.star.bnl.gov/ ) Fundamental science: particle physics, nuclear physics, astrophysics, cosmology, … State of art technology: detector R&D, simulations, IT, computing, mass/fast data managing, … - 550 scientists - 55 institutes - 13 countries - 154 PhD thesis completed since 2001 (Feb. 2013)

  4. STAR Publications Total: 144 Publications

  5. Record on Publications May, 2012

  6. Data Sets at STAR Experiment Heavy Ion Collisions Polarized p+p Collisions • RHIC&STAR upgrades lead to dramatic increase data statistics • The best of STAR is still ahead of us: Precision measurements!

  7. STAR 2ndSummary Paper Membership: D. Cebra, X. Dong, J. Dunlop, O. Evdokimov, C. Gagliardi, H.Z. Huang, D. Keane, B. Mohanty (Chair), E. Sichtermann, P. Sorensen, B. Surrow, S. Wissink, N. Xu, Z.B. Xu Charges: This committee will work with the collaboration as a whole to write a concise and comprehensive summary of experimental results, from both heavy-ion collision and spin physics, since 2005. Based on the understanding of these results and the theoretical developments, the science case for continuing operation of RHIC during 2015-2020 should be outlined in the document. This White Paper is expected to be submitted to a refereed journal for publication in early 2013.The relevant part of the executive summary of the White Paper will be used for providing input to the NSAC Long Range Plan Implementation Subcommittee as well as the Community White Paper to be organized by APS. Structure of the document: Chapter 1: Introduction Chapter 2: Review conclusions from previous white paper Chapter 3: New theoretical ideas Chapter 4: Initial conditions Chapter 5: Properties of sQGP Chapter 6: Exploring the QCD phase diagram (BES-I) Chapter 7: Spin physics Chapter 8: Outlook and future directions Timelines for the document: - Executive summary by end of August 2012 - Full document by February, 2013 Summarize results since 2005 wp Include both HI + Spin results Focus the publication process

  8. Δu Δd Precision Spin Results at RHIC

  9. Di-lepton: Penetrating-Bulk Probe √s = 200 GeV p+p Au+Au MinBias Au+Au Central PRD86, (12)24906; arXiv:1204.1890 Direct radiation, penetrating-bulk probe, new to STAR! Beam energy, pT, centrality, mass dependence (8-10x more events): RAA, v2, radial expansion, HBT, polarization, … 3) HFT/MTD upgrades: key for the correlated charm contributions.

  10. RHIC BES-I Highlights (1) Net-proton High Moments (2) ϕ-meson Productions Critical Fluctuations: Search for QCD critical point Multi-strange hadrons: isolate the QCD phases

  11. RHIC BES-I Highlights (3) Jet-quenching (5) “Local Parity Violation” (4) NCQ Scaling in v2 sQGP key signatures turned off!

  12. Exploring QCD Phase Structure TERHIC, SPS, FAIR 2 Tini, TC LHC, RHIC Phase boundary RHIC,FAIR, NICA 3 1 1 2 3 Hadronic Matter Partonic Matter

  13. STAR BUR for Runs 13 and 14 2-3 week of Au+Aucollisions at 15 GeV Run 13: 20 cryo-week. 510pp: 55% polarization, 15 – 20 cryo-weeks Run 14: 20 cryo-week. 200pp: 65% polarization

  14. Particle Identification at STAR TPC TOF TPC TPC K pd π e, μ TOF Log10(p) Charged hadrons Hyperons & Hyper-nuclei MTD HFT Jets EMC Neutral particles Jets & Correlations High pTmuons Heavy-flavor hadrons Multiple-fold correlations for the identified particles!

  15. STAR Detector Configurations • STAR: Large coverage, excellent PID, fast DAQ • - detects nearly all particles produced at RHIC • - multiple fold correlation measurements • - Probes: bulk, penetrating, and bulk-penetrating • STAR: Perfect mid-y collider experiment • STAR: Expanding into forward rapidity regions

  16. STAR Detector System (2014) HFT GEM MTD BEMC TPC EEMC TOF η = -1 η = 0 η = 1

  17. STAR Forward Upgrade Plan (2018) Built on the mid-y success: Evolution, not revolution! HFT GEM MTD BEMC TPC EEMC TOF η = -1 η = 0 η = 1 Be part of STAR’s forward upgrades! p/A e 0 HLT eSTAR taskforce: E. Sichtermann and Z.B. Xu STAR Upgrade/Decadal Plan: C. Gagliardi, H. Huang and F. Videbaek EMCal Tracking iTPC Tracking PID EM/HCal

  18. Exploring the QCD Phase Structure TE RHIC, SPS 2 Large μB NICA, FAIR Tini, TC LHC, RHIC 3 1 LHC+RHIC sQGP properties √sNN ~ few TeV NICA/FAIR QCD phase structure √sNN ≤ 12 GeV 1 2 3 Partonic Matter Hadronic Matter RHIC BES-II QCD phase structure and critical point √sNN ≤ 20 GeV Future eRHIC Cold nuclear matter properties e + ion collisions Emergent properties of QCD matter

  19. QCD Phase Structure Hot QCD Matter Cold QCD Matter RHIC/LHC EIC (eRHIC) Study phase structure with QCD degrees of freedom

  20. Study QCD Phase Structure HFT/MTD: HF, dileptons HFT’ BES-I e-cooling&iTPC BES-II, √sNN ≤ 20GeV STAR Core Programs Spin: Δg, W±, AN Upgrades at large-y & iTPC, CGC, pdfeSTAR/eRHIC LHC FAiRRHIC NICA/CBM Experiment (QCD phase structure) x10 x100 LHC √sNN = 5.5 TeV (sQGP properties)

  21. Summary 1) STAR at RHIC: Dedicated facility/Detector for studying matter with QCD degrees of freedom: - Properties of QGP - Sea quark and gluon contributions to proton helicity structure - QCD critical point, phase boundary 2) Near Future: Forward upgrades and eSTAR 3) Future: EIC (eRHIC, ~2020 - …) - Partonic structures of nucleon and nuclei - Dynamical evolution from cold nuclear matter to hot QGP Emergent Properties of QCD Matter Phase Structures of QCD Matter

  22. STAR Detector Fast and Fullazimuthal particle identification EMC+EEMC+FMS (-1 ≤  ≤ 4) MRPC Time Of Flight MTD2013 DAQ1000 Time Projection Chamber (TPC) HLT Heavy Flavor Tracker (HFT) 2013 FGT 2011 BNL PAC, 21 - 22, 2010

More Related