2008.10.9SQM’08 1 An explorer for the shear viscosity in the formed matter at relativistic heavy ion collisions Wu Yuanfang IOPP, Huazhong Normal University,

Slides:



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

QGP Viscosity & Elliptic Flow for Multi-strange Hadrons
Dynamic Modeling for Relativistic Heavy Ion Collisions
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.
R. Lacey, SUNY Stony Brook 1 Arkadij Taranenko Quark Matter 2006 November 13-20, Shanghai, China Nuclear Chemistry Group SUNY Stony Brook, USA PHENIX Studies.
New Results from Viscous Hydro + URQMD (VISHNU) International School for High Energy Nuclear Collisions, Wuhan, Oct 31- Nov.5, 2011 References: Supported.
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.
Effects of Bulk Viscosity on p T -Spectra and Elliptic Flow Parameter Akihiko Monnai Department of Physics, The University of Tokyo, Japan Collaborator:
Anisotropic Flow at RHIC Jiayun Chen (for Collaboration) Institute of Particle Physics, HZNU, Wuhan, , P.R.China Brookhaven National Lab, Upton,
Julia VelkovskaMoriond QCD, March 27, 2015 Geometry and Collective Behavior in Small Systems from PHENIX Julia Velkovska for the PHENIX Collaboration Moriond.
1 Questions about sQGP Carlos Arguello Columbia University 24 th Winter Workshop on Nuclear Dynamics April 10 th 2008.
Based on work with: Sean Gavin & Larry McLerran arXiv: [nucl-th] Long Range Correlations and The Soft Ridge George Moschelli 25th Winter Workshop.
Luan Cheng (Institute of Particle Physics, Huazhong Normal University) I. Introduction II. Interaction Potential with Flow III. Flow Effects on Light Quark.
The centrality dependence of elliptic flow Jean-Yves Ollitrault, Clément Gombeaud (Saclay), Hans-Joachim Drescher, Adrian Dumitru (Frankfurt) nucl-th/
WWND, San Diego1 Scaling Characteristics of Azimuthal Anisotropy at RHIC Michael Issah SUNY Stony Brook for the PHENIX Collaboration.
Perfect Fluid: flow measurements are described by ideal hydro Problem: all fluids have some viscosity -- can we measure it? I. Radial flow fluctuations:
Perfect Fluid: flow measurements are described by ideal hydro Problem: all fluids have some viscosity -- can we measure it? I. Transverse flow fluctuations:
Effects of Bulk Viscosity at Freezeout Akihiko Monnai Department of Physics, The University of Tokyo Collaborator: Tetsufumi Hirano Nagoya Mini-Workshop.
Hydrodynamics, flow, and flow fluctuations Jean-Yves Ollitrault IPhT-Saclay Hirschegg 2010: Strongly Interacting Matter under Extreme Conditions International.
Hydrodynamic Tests of Fluctuating Initial Conditions George Moschelli & Hannu Holopainen Transport Meeting 24 January 2012.
1 Elliptic Flow at RHIC Art Poskanzer Color by Roberta Weir Tom W. Bonner Prize 2008 Lawrence Berkeley National Laboratory.
Diffusion of transverse correlations and shear viscosity in heavy ion collisions Qun Wang ( 王群 ) Univ of Sci & Tech of China ( 中国科技大学 ) With L.G.Pang,X.N.Wang,R.Xu.
May, 20, 2010Exotics from Heavy Ion Collisions KE T and Quark Number Scaling of v 2 Maya Shimomura University of Tsukuba Collaborated with Yoshimasa Ikeda,
Anomaly of over ratios in Au+Au collision with jet quenching Xiaofang Chen IOPP, CCNU Collaborator: Enke Wang Hanzhong Zhang Benwei Zhang Beijing Mar.
Two Particle Correlations and Viscosity in Heavy Ion Collisions Monika Sharma for the Wayne State University STAR Collaboration Outline: Motivation Measurement.
Perfect Fluid: flow measurements are described by ideal hydro Problem: all fluids have some viscosity -- can we measure it? I. Radial flow fluctuations:
Flow fluctuation and event plane correlation from E-by-E Hydrodynamics and Transport Model LongGang Pang 1, Victor Roy 1,, Guang-You Qin 1, & Xin-Nian.
Longitudinal de-correlation of anisotropic flow in Pb+Pb collisions Victor Roy ITP Goethe University Frankfurt In collaboration with L-G Pang, G-Y Qin,
Workshop for Particle Correlations and Femtoscopy 2011
November 18, Shanghai Anomalous Viscosity of an Expanding Quark-Gluon Plasma Masayuki ASAKAWA Department of Physics, Osaka University S. A.
M. Oldenburg Strange Quark Matter 2006 — March 26–31, Los Angeles, California 1 Centrality Dependence of Azimuthal Anisotropy of Strange Hadrons in 200.
Luan Cheng (Institute of Particle Physics, Huazhong Normal University) I.Introduction II. Potential Model with Flow III.Flow Effects on Parton Energy Loss.
Locating critical point of QCD phase transition by finite-size scaling Chen Lizhu 1, X. S. Chen 2, Wu Yuanfang 1 1 IOPP, Huazhong Normal University, Wuhan,
Anisotropic flow, Azimuthal Balance Function, and Two-charged-particle Azimuthal Correlations in RQMD and AMPT We are very grateful to Zhixu Liu and Jiaxin.
Flow fluctuation and event plane correlation from E-by-E Hydrodynamics and Transport Model Victor Roy Central China Normal University, Wuhan, China Collaborators.
Partial thermalization, a key ingredient of the HBT Puzzle Clément Gombeaud CEA/Saclay-CNRS Quark-Matter 09, April 09.
Ridge Formation and Long Range Correlations in pp Collisions at CMS C.B. Yang Institute of Particle Physics Central China Normal University Wuhan ,
Scaling of Elliptic Flow for a fluid at Finite Shear Viscosity V. Greco M. Colonna M. Di Toro G. Ferini From the Coulomb Barrier to the Quark-Gluon Plasma,
Elliptic flow and shear viscosity in a parton cascade approach G. Ferini INFN-LNS, Catania P. Castorina, M. Colonna, M. Di Toro, V. Greco.
Shear and Bulk Viscosities of Hot Dense Matter Joe Kapusta University of Minnesota New Results from LHC and RHIC, INT, 25 May 2010.
Heavy-Ion Physics - Hydrodynamic Approach Introduction Hydrodynamic aspect Observables explained Recombination model Summary 전남대 이강석 HIM
Inha Nuclear Physics Group Quantum Opacity and Refractivity in HBT Puzzle Jin-Hee Yoon Dept. of Physics, Inha University, Korea John G. Cramer,
HIM06-12 SHLee1 Some Topics in Relativistic Heavy Ion Collision Su Houng Lee Yonsei Univ., Korea 1.J. P. Blaizot 2.J. Kapusta 3.U. A. Wiedemann.
Glasma, minijets, strings  long range  correlations  Venugopalan Ask: how does viscous flow modify these correlations? Viscosity, Flow and the Ridge.
Roy A. Lacey, Stony Brook, ISMD, Kromĕříž, Roy A. Lacey What do we learn from Correlation measurements at RHIC.
24 Nov 2006 Kentaro MIKI University of Tsukuba “electron / photon flow” Elliptic flow measurement of direct photon in √s NN =200GeV Au+Au collisions at.
Charm elliptic flow at RHIC B. Zhang 1, L.W. Chen 2, C.M. Ko 3 1 Arkansas State University, 2 Shanghai Jiao Tong University, 3 Texas A&M University Charm.
Measurement of Azimuthal Anisotropy for High p T Charged Hadrons at RHIC-PHENIX The azimuthal anisotropy of particle production in non-central collisions.
Kirill Filimonov, ISMD 2002, Alushta 1 Kirill Filimonov Lawrence Berkeley National Laboratory Anisotropy and high p T hadrons in Au+Au collisions at RHIC.
Elliptic flow and incomplete equilibration in AMPT Jian-Li Liu Harbin Institute of Technology.
Elliptic Anisotropy v2 May Be Dominated by Particle Escape Zi-Wei Lin (with L He, T Edmonds, F Liu, D Molnar, FQ Wang) Quark Matter /17 Elliptic.
June 4, Tokyo Anomalous Viscosity of an Expanding Quark-Gluon Plasma Masayuki ASAKAWA Department of Physics, Osaka University S. A. Bass,
Flow and Dissipation in Ultrarelativistic Heavy Ion Collisions September 16 th 2009, ECT* Italy Akihiko Monnai Department of Physics, The University of.
V 2 and v 4 centrality, p t and particle-type dependence in Au+Au collisions at RHIC Yuting Bai for the STAR Collaboration.
Workshop on Flow and heavy flavour in high energy heavy-Ion collisions Inha University, 2015/2/26.
Toward a  +Jet Measurement in STAR Saskia Mioduszewski, for the STAR Collaboration Texas A&M University 1.
Yuting Bai (for the Collaboration) Anisotropic Flow and Ideal Hydrodynamic Limit International Conference on Strangeness in Quark Matter 2008 Oct ,
Soft physics in PbPb at the LHC Hadron Collider Physics 2011 P. Kuijer ALICECMSATLAS Necessarily incomplete.
What do the scaling characteristics of elliptic flow reveal about the properties of the matter at RHIC ? Michael Issah Stony Brook University for the PHENIX.
Akihiko Monnai Department of Physics, The University of Tokyo Collaborator: Tetsufumi Hirano V iscous Hydrodynamic Evolution with Non-Boost Invariant Flow.
SQM,UC Berkeley 27 June- 1July 2016
4. Experimental measure and expectations 5. Summary and conclusions
Heavy Quark Flow as Better Probes of QGP Properties
Introduction Results Methods Conclusions
Effects of Bulk Viscosity on pT Spectra and Elliptic Flow Coefficients
Institute of Particle Physics Huazhong Normal University
of Hadronization in Nuclei
IOPP, Huazhong Normal University, Wuhan, China
The energy dependence of rapidity correlation pattern
Presentation transcript:

SQM’08 1 An explorer for the shear viscosity in the formed matter at relativistic heavy ion collisions Wu Yuanfang IOPP, Huazhong Normal University, Wuhan, China 1. Motivation 2. Azimuthal bin-bin multiplicity corr. pattern 3. The correlation pattern & shear viscosity 4. A rough estimation of η in AMPT 5. Summary and outlook Co-authers: Wang Meijuan, Li Lin, and Liu Lianshou Acknowledgements: T. Hirano, Li Jiarong, Wang Fuqiang, Tang Aihong and Xu Nu

SQM’ Motivation: ★ Why perfect fluid ► Large energy density achieved ► Jet energy loss in matter ► Collective behaviour observed « Perfect liquid », « sQGP » ! The mass-dependence of v 2 at p T < 2 GeV shows qualitatively agreement with ideal hydrodynamic flow. M. Gyulassy, L. McLerran, Nucl. Phys. A750, 30-63(2005); B. Muller, Annu. Rev. Nucl. and Part. Phys.,1(2006). K. Adcox et al. (PHENIX Coll.), Nucl. Phys. A757, (2005); John Adams et al. (STAR Coll.), Nucl. Phys. A757, (2005);

SQM’ Motivation: ★ Why not perfect fluid ? Perfect liquid Zero viscosity S. Pratt, arXiv: ; S. A. Voloshin, arXiv: S. Pratt, arXiv: ; S. A. Voloshin, arXiv: The result of leading order perturbative : for P. Arnold, G. D. Moore and L. G. Yaffe. The lower bound of shear viscosity: It reduces the flow values up to 10-30%. P. Kovtun, D. T. Son, and A. O. Starinets, Phys. Rev. Lett. 94, (2005). It is necessary to know the real value of shear viscosity!

SQM’ Motivation: ★ Main difference between perfect and viscous fluid. There are friction between two layers. →→→→→ →→→→→ Perfect liquid: →→→→→ Viscous liquid: No friction between two layers of flow. two layers of flow. Velocity is const. Velocity is different from layer to layer. →→→→→ The internal interaction and velocity gradient are directly related to the viscous behavior of the fluid. directly related to the viscous behavior of the fluid.

SQM’ Azimuthal bin-bin multiplicity correlation pattern: y x ★ Neighboring angular bin-bin N corr. pattern: Shear interaction : multiplicity in mth bin. : the direction of reaction plane. It measures azimuthal distribution of nearby particles correlation. Wu Yuanfang, Lianshou Liu, Yingdan Wang, Yuting Bai & Hongbo Liao, PRE71, (2005).

SQM’ Azimuthal bin-bin multiplicity correlation pattern: ★ Bin-bin correlations & 2-particle correlations 2-particle corr. : Case 1: Randomly produced particles produced particles with in-plane liked with in-plane liked Φ dis. Case 2 : RQMD w/o re-scattering N ab : no. of pairs with separated angle δφ. Bin-bin correlation is not sensitive to the trivial correlations in both cases !

SQM’ Azimuthal bin-bin multiplicity correlation pattern: ★ Influences of multiplicity (N ch ) and elliplitic flow (v 2 ) Case 3: Randomly produced particles with given Φ dis. for diff. N Case 4: Randomly produced particles with given N dis. for diff. Φ dis. Neither of them contributes to the pattern !

SQM’ Azimuthal bin-bin multiplicity correlation pattern: ★ influences of the correlation between N and v 2. Case 5: Randomly produced particles but Φ dis. increase with N The correlation between N and v 2 contributes to the pattern. It is necessary to study the pattern in fixed N or v 2 sample.

SQM’ The correlation pattern and shear viscosity : ★ Bin-bin correlation and interaction energy M. Stephanov, Int. J. Mod. Phys. A20, 4787(2005); M. Stephanov, Phys. Rev. D65, (2002)., is the interaction energy. In the whole system, the total interaction energy is : If the interaction is small, in the leading order, the correlation is,

SQM’ The correlation pattern and shear viscosity : ★ Dissipative energy of the fluid In hydrodynamics, the viscous stress tensor : L. D. Landau & E. M. Lifshitz, Fluid Mechanics, Pergamon Press. η(p,T) and ξ(p,T) are shear and bulk viscosity respectively. For incompressible fluid, the dissipative energy is: Take the cylindrical coordinates, and assume,

SQM’ The correlation pattern and shear viscosity : ★ Shear viscosity and bin-bin correlation If the bin-bin correlation is only due to viscous interaction, Then, i.e., T → p T spectrum; → final velocity gradient.

SQM’ A rough estimation of shear viscosity in AMPT: ★ Correlation pattern from AMPT with string melting: Correlation pattern is in-plane like! is in-plane like! If we fit it by: then : For Au + Au collisions at 200 GeV with fixed N and b

SQM’ A rough estimation of shear viscosity in AMPT: ★ Velocity gradient: If we fit it by: then: Velocity gradient is in-plane like too! is in-plane like too!

SQM’ A rough estimation of shear viscosity in AMPT: ★ Shear viscosity in AMPT: Take the second harmonics in expansions of correlation pattern and velocity gradient, and approximate T=170MeV, It is very small, since the transportation in AMPT has a very large cross section of scattering. It is shown recently that the finite interaction range in transportation will contribute to the viscous coefficients and conductivity. S. Cheng & S. Pratt, PRC 65, (2002) Hans-Joachim Drescher,1 Adrian Dumitru,2 Cl´ement Gombeaud, PRC 76, (2007) and Jean-Yves Ollitrault, PRC 76, (2007)

SQM’ Summary and outlook azimuthal bin-bin multiplicity corr. pattern is ☞ azimuthal bin-bin multiplicity corr. pattern is suggested. suggested. Its relation with shear viscosity is demonstrated. ☞ Its relation with shear viscosity is demonstrated. ☞ The shear viscosity in AMPT with string melting is estimated. estimated. ☞ The correlation pattern from current and coming relativistic heavy ion collisions are looking forward! relativistic heavy ion collisions are looking forward!