Solenoidal Tracker At Rhic STAR with recent Results

Solenoidal Tracker At Rhic (STAR) with recent Results

Outline • Relativistic Heavy Ion Collision • STAR Experiment at RHIC(ollider) in BNL • Recent Highlights (some updates of QM 2011) • A Large Ion Collider Exp. @ LHC Yoo@PNU 2 HIM 2011 -04

Brookhaven National Lab. (BNL) ★ Circumference: 3. 83 km ★ First collision: 2000 ★ 100 A Ge. V Au+Au(2 X 1026/cm 2/s) ★ 250 Ge. V p + p (2 X 1032/cm 2/s) ★ Au. Au @ 19. 6, 62, 130, 200 AGe. V/u ★ Cu. Cu @ 200 AGe. V/u ★ d. Au @ 200 AGe. V/u Yoo@PNU 3 HIM 2011 -04

Detectors @ RHIC 5

STAR Detector Yoo@PNU 6 HIM 2011 -04

Au. Au Collisions @ 130 AGe. V Yoo@PNU 7 HIM 2011 -04

Au. Au Collisions @ 130 AGe. V Yoo@PNU 8 HIM 2011 -04

Au. Au Collisions @ 130 AGe. V Yoo@PNU 9 HIM 2011 -04

Particle ID @ STAR Yoo@PNU 10 HIM 2011 -04

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Monojet ? or Dijet? • With increasing the jet energy, back-to-back peaks in central Au. Au collisions are reappearing Yoo@PNU 13 HIM 2011 -04

System-size dependence • With increasing system-size, back-to-back peaks are suppressed. Yoo@PNU 14 HIM 2011 -04

3 particle correlations 15

Mach-like Shock Wave A fast thermalization near through dispersing energy into collective Medium away mach cone Yoo@PNU 16 modes of shock waves. HIM 2011 -04

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Liquid-like Early Universe Yoo@PNU 19 HIM 2011 -04

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RHIC as Exotic/Antimatter Machine Science 328, 58 (2010) Yoo@PNU 2020 -12 -01 Nature 473, 353 (2011) Latest STAR results for antinuclei 27 HIM 2011 -04

Antimatter Hyper Triton Yoo@PNU 28 HIM 2011 -04

Antimatter Helium Yoo@PNU 29 HIM 2011 -04

A Large Ion Collider Exp. @ LHC Yoo@PNU 30 HIM 2011 -04

A Large Ion Collider Exp. Pb@ 2. 76 Te. V Energy density from d. Nch/dη = 1599 ± 4 (stat. ) ± 80 (syst. ) constrains / rules out models 100 times cold nuclear matter density ~3 times the density reached at RHIC (ε ≈ 15 Ge. V/fm 3) Volume and lifetime from HBT Freeze-out volume ~ 300 fm 3 ~ 2 times the volume measured at RHIC (Au. Au@200 Ge. V) Lifetime until freeze-out ~ 10 fm/c Yoo@PNU 31 HIM 2011 -04

A Large Ion Collider Exp. Pb@ 2. 76 Te. V Strong energy loss in hot and dense medium Quantified by nuclear suppression factor RAA Maximum suppression RAA ~ 1. 5 – 2 x stronger than at RHIC Yoo@PNU 32 HIM 2011 -04

A Large Ion Collider Exp. Pb@ 2. 76 Te. V Yoo@PNU 33 HIM 2011 -04

Thanks! • 35 Heavy Ion Meetings since 2004 -12 • 290 Talks / avrg. 35 participants • 101 foreign invitees • Asian Triangle HI Conferences (ATHIC) • GREAT APPRECIATION TO PROF. SHIM Yoo@PNU 34 HIM 2011 -04