Aihong Tang The Berkeley School 05 1 Open Questions in the “Perfect Fluid” Aihong Tang.

Slides:

Advertisements

Similar presentations

M. Oldenburg Theory Seminar, University of Frankfurt, January Directed Flow in Au+Au Collisions Markus D. Oldenburg Lawrence Berkeley National Laboratory.

Advertisements

M. Oldenburg Johann Wolfgang Goethe-Universität Frankfurt, Januar Gerichteter Fluss bei Au+Au Kollisionen (Directed Flow in Au+Au Collisions) Markus.

M. Oldenburg Probing QCD with High Energy Nuclear Collisions, Hirschegg, Austria, January Directed Flow in Au+Au Collisions Markus D. Oldenburg.

PID v2 and v4 from Au+Au Collisions at √sNN = 200 GeV at RHIC

Multi-Particle Azimuthal Correlations at RHIC !! Roy A. Lacey USB - Chem (SUNY Stony Brook ) What do they tell us about Possible Quenching?

Mass, Quark-number, Energy Dependence of v 2 and v 4 in Relativistic Nucleus- Nucleus Collisions Yan Lu University of Science and Technology of China Many.

Marcus Bleicher, Berkeley, Oct Elliptic Flow in High Energetic Nuclear Collisions Marcus Bleicher & Xianglei Zhu FIAS & Institut für Theoretische.

Elliptic flow of thermal photons in Au+Au collisions at 200GeV QNP2009 Beijing, Sep , 2009 F.M. Liu Central China Normal University, China T. Hirano.

STAR 1 Azimuthal Anisotropy: The Higher Harmonics Art Poskanzer for the Collaboration STAR.

Anisotropic Flow at RHIC Jiayun Chen (for Collaboration) Institute of Particle Physics, HZNU, Wuhan, , P.R.China Brookhaven National Lab, Upton,

Charm & bottom RHIC Shingo Sakai Univ. of California, Los Angeles 1.

Measurements of long-range angular correlation and identified particle v 2 in 200 GeV d+Au collisions from PHENIX Shengli Huang Vanderbilt University for.

Identified particle transverse momentum distributions in 200 GeV Au+Au collisions at RHIC 刘海东中国科技大学.

References to Study the New Matter. Study QGP in different Centrality Most Central events (highest multiplicity), e.g. top 5% central, i.e. 5% of the.

Julia VelkovskaMoriond QCD, March 27, 2015 Geometry and Collective Behavior in Small Systems from PHENIX Julia Velkovska for the PHENIX Collaboration Moriond.

ICPAQGP, Kolkata, February 2-6, 2015 Itzhak Tserruya PHENIX highlights.

S.A. Voloshin International Symposium on Multiparticle Dynamics, Sonoma, CA, July 2004page1 RHI Collisions. Dense Matter. Anisotropic Flow Sergei Voloshin.

03/14/2006WWND2006 at La Jolla1 Identified baryon and meson spectra at intermediate and high p T in 200 GeV Au+Au Collisions Outline: Motivation Intermediate.

Resolution of Several Puzzles at Intermediate p T and Recent Developments in Correlation Rudolph C. Hwa University of Oregon Quark Matter 05 Budapest,

Identified and Inclusive Charged Hadron Spectra from PHENIX Carla M Vale Iowa State University for the PHENIX Collaboration WWND, March

The centrality dependence of elliptic flow Jean-Yves Ollitrault, Clément Gombeaud (Saclay), Hans-Joachim Drescher, Adrian Dumitru (Frankfurt) nucl-th/

Identified Particle Ratios at large p T in Au+Au collisions at  s NN = 200 GeV Matthew A. C. Lamont for the STAR Collaboration - Talk Outline - Physics.

QM2006 Shanghai, China 1 High-p T Identified Hadron Production in Au+Au and Cu+Cu Collisions at RHIC-PHENIX Masahiro Konno (Univ. of Tsukuba) for the PHENIX.

PHENIX Heavy-Flavor Results Matt Snowball (LANL) on behalf of the PHENIX collaboration Hard Probes 2015.

Two Particle Correlations and Viscosity in Heavy Ion Collisions Monika Sharma for the Wayne State University STAR Collaboration Outline: Motivation Measurement.

QM’05 Budapest, HungaryHiroshi Masui (Univ. of Tsukuba) 1 Anisotropic Flow in  s NN = 200 GeV Cu+Cu and Au+Au collisions at RHIC - PHENIX Hiroshi Masui.

Partonic Collectivity at RHIC ShuSu Shi for the STAR collaboration Lawrence Berkeley National Laboratory Central China Normal University.

1 Identified Particle Dependence of Nuclear Modification Factors in d+Au Collisions at RHIC. Lee Barnby - University of Birmingham For the STAR Collaboration.

U N C L A S S I F I E D 7 Feb 2005 Studies of Hadronic Jets with the Two-Particle Azimuthal Correlations Method Paul Constantin.

Anisotropic Flow Raimond Snellings. Raimond Snellings; Trento What have we learned from elliptic flow so far? According to: –U. Heinz: Resulting.

Heavy flavor production at RHIC Yonsei Univ. Y. Kwon.

1 Effect of Eccentricity Fluctuations on Elliptic Flow Art Poskanzer Color by Roberta Weir Exploring the secrets of the universe The Berkeley School 2010.

Anisotropic flow, Azimuthal Balance Function, and Two-charged-particle Azimuthal Correlations in RQMD and AMPT We are very grateful to Zhixu Liu and Jiaxin.

1 Jeffery T. Mitchell – Quark Matter /17/12 The RHIC Beam Energy Scan Program: Results from the PHENIX Experiment Jeffery T. Mitchell Brookhaven.

Helen Caines Yale University Soft Physics at the LHC - Catania - Sept Questions for the LHC resulting from RHIC Strangeness Outline Chemistry Yields.

1 Low energy scan and collective flow at 9 GeV Jiayun Chen, Feng Liu, Shusu Shi, Kejun Wu Weihai, Aug. 9,2009.

Jet Propagation & Mach Cone Evolution in (3+1)d Ideal Hydrodynamics Barbara Betz, Miklos Gyulassy, Dirk Rischke, Horst Stöcker and Giorgio Torrieri 05.

Incident-energy and system-size dependence of directed flow Gang Wang (UCLA) for STAR Collaboration  Introduction to directed flow  Detectors: ZDC-SMD,

Hadron Collider Physics 2012, 12/Nov/2012, KyotoShinIchi Esumi, Univ. of Tsukuba1 Heavy Ion results from RHIC-BNL ShinIchi Esumi Univ. of Tsukuba Contents.

Masashi Kaneta, First joint Meeting of the Nuclear Physics Divisions of APS and JPS 1 / Masashi Kaneta LBNL

Elliptic flow and shear viscosity in a parton cascade approach G. Ferini INFN-LNS, Catania P. Castorina, M. Colonna, M. Di Toro, V. Greco.

Beam-Energy and Centrality Dependence of Directed Flow of Identified Particles Prashanth Shanmuganathan (for the STAR Collaboration) Kent State University,

PHENIX results on centrality dependence of yields and correlations in d+Au collisions at √s NN =200GeV Takao Sakaguchi Brookhaven National Laboratory for.

Roy A. Lacey, Stony Brook, ISMD, Kromĕříž, Roy A. Lacey What do we learn from Correlation measurements at RHIC.

Christina Markert Hot Quarks, Sardinia, Mai Christina Markert Kent State University Motivation Resonance in hadronic phase Time R AA and R dAu Elliptic.

Systematic Study of Elliptic Flow at RHIC Maya SHIMOMURA University of Tsukuba ATHIC 2008 University of Tsukuba, Japan October 13-15, 2008.

Bulk properties at RHIC Olga Barannikova (Purdue University) Motivation Freeze-out properties at RHIC STAR perspective STAR  PHENIX, PHOBOS Time-span.

Christina MarkertHirschegg, Jan 16-22, Resonance Production in Heavy Ion Collisions Christina Markert, Kent State University Resonances in Medium.

Christina Markert 22 nd Winter Workshop, San Diego, March Christina Markert Kent State University Resonance Production in RHIC collisions Motivation.

Intermediate pT results in STAR Camelia Mironov Kent State University 2004 RHIC & AGS Annual Users' Meeting Workshop on Strangeness and Exotica at RHIC.

T. Csörgő 1,2 for the PHENIX Collaboration Femtoscopic results in Au+Au & p+p from PHENIX at RHIC 1 MTA KFKI RMKI, Budapest,

S.A. Voloshin PANIC 2008, Eilat, Israel, November 9-14, Anisotropic flow:…page1 Sergei A. Voloshin Wayne State University, Detroit, Michigan Collective.

Recent developments in RHIC physics Rudolph C. Hwa University of Oregon IHEP seminar June 14, 2005.

Direct Photon v 2 Study in 200 GeV AuAu Collisions at RHIC Guoji Lin (Yale) For STAR Collaboration RHIC & AGS Users’ Meeting, BNL, June 5-9.

Directed flow of identified particles from Au+Au Collisions at RHIC

Directed Flow of Identified Particles

Directed flow of identified particles from Au+Au Collisions at RHIC

High-pT Identified Hadron Production in Au+Au and Cu+Cu Collisions

Experimental Studies of Quark Gluon Plasma at RHIC

Directed Flow Measurements at STAR

Anisotropic RHIC Hiroshi Masui / Univ. of Tsukuba Mar/03/2007 Heavy Ion Cafe.

Anisotropic flow at RHIC - selected topics

Hiroshi Masui / Univ. of Tsukuba Feb./11/2007

High-pT Identified Charged Hadrons in √sNN = 200 GeV Au+Au Collisions

Identified Charged Hadron

Shengli Huang Vanderbilt University for the PHENIX Collaboration

Hiroshi Masui for the PHENIX collaboration August 5, 2005

Identified Charged Hadron Production at High pT

Directed Flow from Au+Au Collisions at 200 GeV

Identified Particle Production at High Transverse Momentum at RHIC

Presentation transcript:

Aihong Tang The Berkeley School 05 1 Open Questions in the “Perfect Fluid” Aihong Tang

Aihong Tang The Berkeley School 05 2 Outline v 2 /  scaling “Elliptic flow” in pp and dAu v 1 wiggle Puzzle at intermediate p t Photon flow

Aihong Tang The Berkeley School 05 3 v 2 /  scaling v 2 /  scaling Universal curve?

Aihong Tang The Berkeley School 05 4 v 2 /eccentricity : universal curve? Phobos, Phys. Rev. Lett(89), (2002) STAR, Phys. Rev. C(66), (2002) NA49,Phys. Rev. C(68), (2003) Why crossing, not approaching? How does a lighter system like CuCu fit in this curve?

Aihong Tang The Berkeley School 05 5 “v 2 ”in pp and dAu “v 2 ”in pp and dAu Don’t ask again, we have done it. Case closed.

Aihong Tang The Berkeley School 05 6 How does elliptic flow evolve from pp to dAu, and AuAu collisions ? dAu (“some flow”)pp (non-flow)AuAu (flow + non-flow) In VERY peripheral collisions, azimuthal correlation in AuAu could be dominated by non-flow. At high p t in central collisions, azimuthal correlation in AuAu could be dominated by nonflow. STAR, nucl-ex/ PRC accepted.

Aihong Tang The Berkeley School 05 7 How does elliptic flow evolve from pp to dAu, and AuAu collisions ? STAR, nucl-ex/ PRC accepted. Correlation in dAu increases as a function of multiplicity, which is a pattern that is opposite to that in AuAu collisions. In high multiplicity events, the Cronin effect is expected to produce more collective motion among soft particles in order to generate a particle with higher p t.

Aihong Tang The Berkeley School 05 8 Directed Flow Directed Flow What wiggle #$!?

Aihong Tang The Berkeley School 05 9 Wiggle : RQMD RQMD v2.4 R.Snellings, H.Sorge, S.Voloshin, F.Wang, N. Xu, PRL (84) 2803(2000) Positive space-momentum correlation, no QGP necessary  v 1 wiggle.

Aihong Tang The Berkeley School Wiggle : uRQMD Marcus Bleicher, Horst Stocker PLB 526, (2002) The non-interacting strings employed in the UrQMD approach result in a smaller space-momentum correlations and thus in a smaller “anti-flow” around midrapidity.

Aihong Tang The Berkeley School Wiggle : phase transition flow antiflow Brachmann, Soff, Dumitru, Stocker, Maruhn, Greiner Bravina, Rischke, PRC 61 (2000) L.P. Csernai, D. Roehrich PLB 458, 454 (1999) M.Bleicher and H.Stocker, PLB 526,309(2002) Anti-flow/3rd flow component, with QGP  v 1 flat at middle rapidity.

Aihong Tang The Berkeley School Wiggle : to summarize Nucleon wiggle, Both RQMD and UrQMD give NO wiggle for central collisions (b~3fm), and both give a wiggle at peripheral collisions (b~8-11fm). Only the one-fluid hydro model gives a wiggle for central collisions but only IF there is a phase transition of first order. Pion wiggle, Different model give different results.

Aihong Tang The Berkeley School Chasing the wiggle : where we are?

Aihong Tang The Berkeley School Chasing the wiggle : where we are? Charged particles (mostly pions) ! STAR Preliminary

Aihong Tang The Berkeley School Puzzles at intermediate P t Puzzles at intermediate P t Recombination and/or Energy loss, is that all?

Aihong Tang The Berkeley School Puzzles at Itermediate p t Althogh R+F reproduces the centrality dependence, still it misses the magnitude. What is the uncertainty in models? A.Tang (for the STAR Collaboration) J. Phys. G : Nucl. Part. Phys. 31 s35-39 (2005) C. Nonaka et al., J. Phys. G : Nucl. Part. Phys. 31 s (2005)

Aihong Tang The Berkeley School Puzzles at Itermediate p t Can we at least get the sign of v 4 right? Hard shell W.-S. Hard sphere STAR, nucl-ex/ PRC accepted.

Aihong Tang The Berkeley School Does direct photon flow? Does direct photon flow? Show me the light !

Aihong Tang The Berkeley School Does direct photon flow? Argument A: phtons are produced isotropically in the momentum space, they do free stream after being produced : v 2 = 0 (widerly accepted, but never confirmed !) Argument B: Strong space-momentum correlation cause photons to be emitted out-of-plane : v 2 < 0

Aihong Tang The Berkeley School Does direct photon flow? Phenix, nucl-ex/

Aihong Tang The Berkeley School Summary v 2 /  scaling needs to be tested with different system sizes and collision energies.v 2 /  scaling needs to be tested with different system sizes and collision energies. There are some collectivities in dAu collisions, especially at Au side, however the “flow” is much weaker (a few hundred times less) than that is in AuAu. There are some collectivities in dAu collisions, especially at Au side, however the “flow” is much weaker (a few hundred times less) than that is in AuAu. v 1 wiggle - let’s see how the identified particle analysis says.v 1 wiggle - let’s see how the identified particle analysis says. v 2 at intermediate pt is still too large to be fit in models. The magnitude of v 4 and its sign needs special attention.v 2 at intermediate pt is still too large to be fit in models. The magnitude of v 4 and its sign needs special attention. Photon flow - Be more open mind.Photon flow - Be more open mind.