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Session 3 (Wednesday May 21, 1:40 - 3:20 pm): Probes of Dense Gluonic Matter (part II)

CIPANP Relativistic Heavy Ion (RHI) Parallel Session. Session 3 (Wednesday May 21, 1:40 - 3:20 pm): Probes of Dense Gluonic Matter (part II) Jet Quenching and Energy Loss - Miklos Gyulassy. G.Baym,QM02. The QGP Paradigm. Proc. Quark Matter 1981-2002. The CGC Paradigm. Ln 1/x.

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Session 3 (Wednesday May 21, 1:40 - 3:20 pm): Probes of Dense Gluonic Matter (part II)

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  1. CIPANP Relativistic Heavy Ion (RHI) Parallel Session Session 3 (Wednesday May 21, 1:40 - 3:20 pm): Probes of Dense Gluonic Matter (part II) Jet Quenching and Energy Loss - Miklos Gyulassy

  2. G.Baym,QM02 The QGP Paradigm Proc. Quark Matter 1981-2002

  3. The CGC Paradigm Ln 1/x Iancu, Venugopalan hep-ph/0303204

  4. Tail How can we use this tiny pQCD tail to wag the QGP Bulk? pT Distribution of Charged Particles Phobos Preliminary Bulk G.Roland Systematic Errors not shown

  5. The high pT window at RHIC is now wide open Au-Au nucl-ex/0304022 nucl-ex/0305015 p+p-> p0 hep-ex/0304038 STAR PRL 89, 202301

  6. p Di-Hadron Tomography Single Hadron Tomography jet g g g g g L2 p X L1 T g T X X g Jet Tomography of QCD Matter Ivan Vitev, Peter Levai, Xin-Nian Wang, MG Reviewed in nucl-th/0302077 p

  7. Au-Au 200 GeV: Final submitted to PRL RAA: High pT Suppression Au-Au nucl-ex/0304022 Au-Au nucl-ex/0304022 M. G. Perdekamp, RHIC/AGS May 15,2003

  8. GRV EKS BKK GLV pQCD tomography I.Vitev et al

  9. Single Hadron Tomography from SPS, RHIC, LHC Ivan Vitev and MG, Phys.Rev.Lett. 89 (2002) Cronin dominates at SPS Cronin+Quench+Shadow conspire to give ~ flat R~Npart/Nbin at RHIC dNg/dy ~ 1000 -> g ~100 0 Predicts sub Npart quench, positive pT slope of R at LHC and RLHC(40)~RRHIC(40)

  10. ‘Mono-Jets’ from Au + Au at 200 GeV Mono Jets from STAR at RHIC(STAR, PRL 90, 082302(2002)) Di-Jets from p + p at 200 GeV ●Au+Au p + p STAR, AGS Users Meeting May 15, 2003

  11. Suppression and correlationSTAR: 200 GeV Au+Au / p+p ●Au+Au p + p STAR Preliminary Hadron suppression and disappearance of back-to-back ‘jet’ are correlated! STAR PRL 90, 082302 STAR, AGS Users Meeting May 15, 2003

  12. Centrality Dependence of p0Quenching PHENIX AuAu 200: nucl-ex/0304022 Consistent With GLV Formalism

  13. So What Do the new d+Au data say? Which paradigm is closer to reality in The RHIC x>0.01 domain?

  14. Gluon Shadow Jet Quenching BRAHMS PRL88(02) XN Wang, MG Cronin? Mini-jets Soft Lund strings Need pA (or dA) to eliminate jet quenching

  15. Unquenched Predictions for for d+Au XNWang, PRC61(00)064910 A.Accardi et al. pQCD partonic level Glauber-Gribov X.N.Wang, nucl-th/0303004 P.Levai et al.

  16. PHENIX Preliminary 1s errors Our NULL Quenching Prediction for dA for x>0.01 is confirmed ! AA quench must be final state interactions STAR Preliminary PHOBOS Preliminary CIPANP 5/21/03 Gyulassy-16

  17. The NULL Quenching Prediction for dA (for x>0.01) is confirmed ! D+Au Preliminary STAR Preliminary Au+Au Final PHOBOS Preliminary AA quench must be due to final state interactions: Jet Quenching CIPANP 5/21/03

  18. PHENIX Preliminary Run 2002/2003 d-Au 200 GeV: PRELIMINARY 0RAA Predictions vs Experiment for central Au+Au and d+Au collisions d+Au:I. Vitev, nucl-th/0302002 and private communication. Au+Au:I. Vitev and M. Gyulassy, Phys.Rev.Lett.89:252301,2002; hep-ph/0208108; M. Gyulassy, P. Levai and I. Vitev, Nucl. Phys. B 594, p. 371 (2001). anti-shadowing shadowing

  19. d+Au: two-particle correlations Check mate! The NULL dA Quench prediction is seen in full strength back-to-back Correlations as in p+p • no normalization to underlying event • “central”: top 20% FTPCE multiplicity • underlying event grows: p+p < d+Au minbias < d+Au central • near-side: correlation strength and width similar • away-side: d+Au peak broadens but little centrality dependence Unquenched back-to-back jets are observed in central d+Au! From P. Jacobs for STAR

  20. Tail Yes it does! Does the pQCD tail wag the QGP dog? Phobos Preliminary G.Roland BULK Systematic Errors not shown

  21. Conclusions: After the first 3000 man-years at RHIC • d+Au was the critical NULL quench control experiment • Au Au RHIC data are now only consistent with QGP Paradigm! • Jet quenching IS due to final state interactions in an opaque QGP • Bulk Elliptic flow pT< 2 GeV saturates hydrodynamic limit for first time • V2(pt; h) is consistent with lattice QCD equation of state More good NEWS:

  22. Collective Flow of Bulk QCD matter? The most sensitive Barometric probe of the QCD Equation of State P(T) Mh dependent v2(pT) Initial spatialanisotropy Final momentum anisotropy y py x px P.Kolb et al, D.Teany et al

  23. Experimental To Do List • Y=+- 3 dAu to test if x=0.001 QGP->CGC ? • C2(phi1,phi2, pt1,pt2, eta1,eta2, fl1,fl2, Mult, A,B, Ecm) • Heavy Quark tomography [ Magdalena Djordjevic] • Open Charm (enhancement?); J/Psi (suppression?) • Charm Flow? [ Sotiria Batsouli ] • Need Direct Photons thermometer • and tagged direct photon -quark jets! • Excitation function Ecm~50-100, A=20-100

  24. Theory To Do List • HBT source Ecm invariance? • why No time-delay? • ET/N Ecm invariance, Npart invariance? • NEW** V2(pT) Ecm invariance !? • source of Flat High pt saturation • V2(y) NON Bjorken boost invariant • Baryon transport dynamics • Thermalization, QGP Transport theory

  25. Selected References on Jet Quenching See also refs therein JET QUENCHING AND RADIATIVE ENERGY LOSS IN DENSE NUCLEAR MATTER.By Miklos Gyulassy (Columbia U.), Ivan Vitev (Iowa State U.), Xin-Nian Wang (LBL, Berkeley), Ben-Wei Zhang (Hua-Zhong Normal U.). Feb 2003. 69pp. Published in Quark Gluon Plasma 3, editors: R.C. Hwa and X.N. Wang, World Scientific, Singapore. e-Print Archive: nucl-th/0302077 HIGH P(T) TOMOGRAPHY OF D + AU AND AU+AU AT SPS, RHIC, AND LHC.By Ivan Vitev (Columbia U. & Iowa State U.), Miklos Gyulassy (Columbia U.). Sep 2002. 4pp. Published in Phys.Rev.Lett.89:252301,2002e-Print Archive: hep-ph/0209161 NONABELIAN ENERGY LOSS AT FINITE OPACITY.By M. Gyulassy (Columbia U.), P. Levai (Columbia U. & Budapest, RMKI), I. Vitev (Columbia U.). CU-TP-976, May 2000. 4pp. Published in Phys.Rev.Lett.85:5535-5538,2000e-Print Archive: nucl-th/0005032 HIGH P(T) AZIMUTHAL ASYMMETRY IN NONCENTRAL A+A AT RHIC.By M. Gyulassy (Columbia U. & LBL, Berkeley), I. Vitev (Columbia U.), X.N. Wang (LBL, Berkeley). Dec 2000. 4pp. Published in Phys.Rev.Lett.86:2537-2540,2001e-Print Archive: nucl-th/0012092 REACTION OPERATOR APPROACH TO NONABELIAN ENERGY LOSS.By M. Gyulassy (Columbia U.), P. Levai (Columbia U. & Budapest, RMKI), I. Vitev (Columbia U.). CU-TP-979, Jun 2000. 39pp. Published in Nucl.Phys.B594:371-419,2001e-Print Archive: nucl-th/0006010 JET TOMOGRAPHY OF AU+AU REACTIONS INCLUDING MULTIGLUON FLUCTUATIONS.By M. Gyulassy (Columbia U.), P. Levai (Budapest, RMKI), I. Vitev (Columbia U.). Dec 2001. 6pp. Published in Phys.Lett.B538:282-288,2002e-Print Archive: nucl-th/0112071

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