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Current Heavy Ion Physics Experiments and Results Survey

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Presentation on theme: "Current Heavy Ion Physics Experiments and Results Survey"— Presentation transcript:

1 Current Heavy Ion Physics Experiments and Results Survey
In-Kwon YOO Heavy Ion Physics Experiment Lab. Pusan National University Busan, Republic of KOREA

2 What are we looking for ? Motivation Experiment Results Outlook
AGeV = GeV/u Outlook In-Kwon YOO Pohang

3 Ultra-Relativistic Heavy Ion Collisions
Motivation Ultra-Relativistic Heavy Ion Collisions Ultra-Relativistic Quantum Molecular Dynamic Model Experiment Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

4 Basic Idea A+A Collision Collision Energy ~ 10 GeV/N+N Energy Density
Motivation Basic Idea A+A Collision Experiment Collision Energy ~ 10 GeV/N+N Energy Density ~ 1 GeV/fm3 Results AGeV = GeV/u Outlook Low Hadrons High DoF Quark & Gluons Low Hadrons In-Kwon YOO Pohang

5 Anomalies in the Energy Dependence of the relevant observables
Motivation Phase Transition Experiment T Results AGeV = GeV/u TC Outlook Q Anomalies in the Energy Dependence of the relevant observables In-Kwon YOO Pohang

6 Relativistic HI Collisions
Motivation Relativistic HI Collisions Experiment T(MeV) Density(n0) ~150 ~10 Early Universe (RHIC) Color Superconductor Neutron Star Hadron Gas Quark-Gluon Plasma Phase Transition Atomic Nuclei RHIC & future LHC explore high temperature & low baryon density partonic matter. Results AGeV = GeV/u SIS explores high baryon density hadronic matter. Outlook In-Kwon YOO Pohang

7 HI Accelerator Accelerator c.m. Energy (GeV) Status SIS 18
Motivation HI Accelerator Accelerator c.m. Energy (GeV) Status SIS 18 (GSI, Germany) 2A (A=mass number) Running AGS (BNL, USA) 5A Finished SIS 300 8A Plan to run from ~2014 SPS (CERN, Switzerland) 20A Finish soon RHIC 200A LHC 5500A Plan to run from ~2007 Experiment Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

8 Conseil Europeen pour la Recherche Nucleaire
Motivation Conseil Europeen pour la Recherche Nucleaire 1959 LEP : 1989 LHC : 2007 1976 Experiment Since 1954 Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

9 Experiments @ SPS.CERN Motivation Experiment Results Outlook
NA44 : The Focussing Spectrometer for one and two particles Experiment NA45 (CERES) : Study of Electron Pair Production in Hadron and Nuclear Collisions Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

10 In-Kwon YOO Pohang

11 In-Kwon YOO Pohang

12 NA60 very precise measurements in InIn
In-Kwon YOO Pohang

13 In-Kwon YOO Pohang

14 Experiments @ SPS.CERN Motivation Experiment Results Outlook
NA44 : The Focussing Spectrometer for one and two particles Experiment NA45 (CERES) : Study of Electron Pair Production in Hadron and Nuclear Collisions Results Large Acceptance Hadron Spectrometer AGeV = GeV/u Outlook Study of Strange and Multistrange Particles In-Kwon YOO Pohang

15 Strangeness Enhancement
Motivation Strangeness Enhancement Experiment Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

16 Onset of Deconfinement ?
Motivation Onset of Deconfinement ? <p> ~ Entropy Deconfinement : An Increase of Pion Yield at the Onset Experiment Strangeness Enhancement : Hadron Gas – Mixed Phase - QGP Results AGeV = GeV/u Anomaly in transverse Expansion Outlook In-Kwon YOO Pohang

17 Experiments @ SPS.CERN Motivation Experiment Results Outlook
NA44 : The Focussing Spectrometer for one and two particles Experiment NA45 (CERES) : Study of Electron Pair Production in Hadron and Nuclear Collisions Results Large Acceptance Hadron Spectrometer AGeV = GeV/u NA50 : Study of Muon Pairs and Vector Mesons Outlook Study of Strange and Multistrange Particles In-Kwon YOO Pohang

18 J/Y in QGP ∞ Matsui & Satz :
Motivation J/Y in QGP Matsui & Satz : In the QGP the screening radius could become smaller than the J/y radius, effectively screening the quarks from each other The charm and anti-charm become unbound, and may combine with light quarks to emerge as “open charm” mesons. Experiment Ref) Phys. Lett. B178 (1986) 416. T=0 T=200 Results 0.41 fm 1.07 fm ∞ 0.59 fm AGeV = GeV/u Ref) Introduction to High-Energy Heavy-Ion Collisions, C.Y. Wong 1994 Outlook In-Kwon YOO Pohang

19 J/Y in QGP (J/Y Suppression)
Motivation J/Y in QGP (J/Y Suppression) Charmonium dissociation temperatures Experiment Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

20 Brookhaven National Lab.
Motivation Brookhaven National Lab. Brookhaven National Lab. in New York Circumference: 3.83 km First collision: 2000 100A GeV Au+Au(2X1026/cm2/s) 250 GeV p + p (2X1032/cm2/s) Experiment BRAHMS PHOBOS PHENIX STAR Results AGeV = GeV/u Outlook In-Kwon YOO Pohang

21 Brookhaven National Lab.
Motivation Brookhaven National Lab. Since 1947 Experiment Alternating Gradient Synchrotron (AGS) c  0.997c 33GeV for protons 11GeV for AuAu The Booster synchrotron 1991 completed. Preacceleration of particles entering the AGS ring. Results AGS-To-RHIC (ATR) transfer line. Bunches are directed either left to the clockwise RHIC ring or right to travel counter-clockwise in the second RHIC ring. AGeV = GeV/u Linear Accelerator (Linac). Protons 200 MeV (300 mA) for pA collisions. Late 1960’s. Tandem Van de Graaff 1970, 15MV, Ions, 24m Outlook Tandem-to-Booster line (TTB) 1986, 700m, 0.05c In-Kwon YOO Pohang

22 Experiments @ RHIC.BNL Motivation Experiment Results Outlook
the Broad Range Hadron Magnetic Spectrometer Experiment Results The Solenoidal Tracker at RHIC (STAR) AGeV = GeV/u Outlook In-Kwon YOO Pohang

23 4 < pT(trig) < 6 GeV/c
Motivation Jet Quenching pT(assoc) > 2 GeV/c pT(assoc) > 0.15 GeV/c 4 < pT(trig) < 6 GeV/c Experiment Hard associated particles → suppression Results AGeV = GeV/u Soft associated particles → enhancement Outlook In-Kwon YOO Pohang

24 Jet Quenching Motivation Experiment Results Outlook Final Data
AGeV = GeV/u Final Data Preliminary Data Outlook In-Kwon YOO Pohang

25 Mach-like Shock wave π Df*=0 Dq*=p PHENIX Preliminary Δ2 Δ1
Motivation Mach-like Shock wave PHENIX Preliminary Dq*=p Df*=0 Experiment away near Medium mach cone Results Δ1 Δ2 π AGeV = GeV/u Outlook In-Kwon YOO Pohang

26 Elliptic Flow (v2) Motivation Experiment Results Outlook In-Kwon YOO
AGeV = GeV/u Outlook In-Kwon YOO Pohang

27 Heavy Ion Exp. Landscape
Motivation Heavy Ion Exp. Landscape LHC 103 Experiment Results AGeV = GeV/u SPS ERA LHC ERA Outlook 1990 2000 2010 2020 2030 K O R I A ? AGS ERA RHIC ERA FAIR ERA In-Kwon YOO Pohang

28 Have We discovered QGP ? Motivation Experiment Results Outlook
AGeV = GeV/u Outlook In-Kwon YOO Pohang

29 Have We discovered Something ?
Motivation Have We discovered Something ? Experiment Results Physicists never say No! Thanks for your attention AGeV = GeV/u Outlook In-Kwon YOO Pohang

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