Microscopic Understanding of ultrarel. HIC – parton cascade and dissipative phenomena C. Greiner, Johann Wolfgang Goethe-Universität Frankfurt Institut.

Slides:



Advertisements
Similar presentations
Zi-Wei Lin (ECU) 28th WWND, Puerto Rico April 10, Update of Initial Conditions in A Multiple Phase Transport (AMPT) Model Zi-Wei Lin Department.
Advertisements

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.
Supported by DOE 11/22/2011 QGP viscosity at RHIC and LHC energies 1 Huichao Song 宋慧超 Seminar at the Interdisciplinary Center for Theoretical Study, USTC.
A common description of jet-quenching and elliptic flow within a pQCD transport model Oliver Fochler H-QM Graduate Day arXiv:
1 Heavy Ion Collisions at LHC in a Multiphase Transport Model  A multi-phase transport (AMPT) model  Rapidity and transverse momentum distributions 
Phase transition of hadronic matter in a non-equilibrium approach Graduate Days, Frankfurt, , Hannah Petersen, Universität Frankfurt.
First Results From a Hydro + Boltzmann Hybrid Approach DPG-Tagung, Darmstadt, , Hannah Petersen, Universität Frankfurt.
Mach Cone Studies in (3+1)d Ideal Hydrodynamics Barbara Betz, Philip Rau, Dirk Rischke, Horst Stöcker, Giorgio Torrieri Institut für Theoretische Physik.
Hydrodynamical Study of Jet Energy Loss Barbara Betz Institut für Theoretische Physik Johann Wolfgang Goethe-Universität Frankfurt am Main DPG - Frühjahrstagung.
Relativistic Heavy-Ion Collisions: Recent Results from RHIC David Hardtke LBNL.
Jet Propagation and Mach-Cone Formation in (3+1)-dimensional Ideal Hydrodynamics Barbara Betz and Miklos Gyulassy, Jorge Noronha, Dirk Rischke, Giorgio.
Mach Cone Studies with 3D Hydrodynamics Barbara Betz Institut für Theoretische Physik Johann Wolfgang Goethe-Universität Frankfurt am Main NCRH2007 Frankfurt,
Investigations on Jet Evolution in (3+1)d Ideal Hydrodynamics Barbara Betz, Dirk Rischke, Horst Stöcker, Giorgio Torrieri Institut für Theoretische Physik.
Luan Cheng (Institute of Particle Physics, Huazhong Normal University) I. Introduction II. Interaction Potential with Flow III. Flow Effects on Light Quark.
Marcus Bleicher, WWND 2008 A fully integrated (3+1) dimensional Hydro + Boltzmann Hybrid Approach Marcus Bleicher Institut für Theoretische Physik Goethe.
Collective Flow Effects and Energy Loss in ultrarelativistic Heavy Ion Collisions Zhe Xu USTC, Hefei, July 11, 2008 with A. El, O. Fochler, C. Greiner.
Space time evolution of QCD matter Parton cascade with stochastic algorithm Transport rates and momentum isotropization Thermalization of gluons due to.
1 Searching for the QGP at RHIC Che-Ming Ko Texas A&M University  Signatures of QGP  Quark coalescence Baryon/meson ratio Hadron elliptic flows and quark.
QCD Plasma Equilibration, Collective Flow Effects and Jet-Quenching – Phenomena of Common Origin C. Greiner, 24th winter workshop on nuclear dynamics,
Viscosity of quark gluon plasma DONG Hui ( 董 辉 ) Shandong University ( 山东大学 ) in collaboration with J.W. Chen(NTU), Q. Wang(USTC), K. Ohnishi(NTU) / J.
Sonic Mach Cones Induced by Fast Partons in a Perturbative Quark-Gluon Plasma [1] Presented by Bryon Neufeld (of Duke University) on March 20 th 2008 in.
M. Beitel, K. Gallmeister, CG, arXiv: in collaboration with: M. Beitel, K. Gallmeister and J. Noronha-Hostler - history of Hagedorn States - nuclear.
Anomaly of over ratios in Au+Au collision with jet quenching Xiaofang Chen IOPP, CCNU Collaborator: Enke Wang Hanzhong Zhang Benwei Zhang Beijing Mar.
Perfect Fluid: flow measurements are described by ideal hydro Problem: all fluids have some viscosity -- can we measure it? I. Radial flow fluctuations:
Collective Flow and Energy Loss with parton transport in collaboration with: I.Bouras, A. El, O. Fochler, F. Reining, J. Uphoff, C. Wesp, Zhe Xu - viscosity.
Workshop for Particle Correlations and Femtoscopy 2011
Jet Propagation and Mach Cones In (3+1)d Ideal Hydrodynamics Barbara Betz, Miklos Gyulassy, Dirk Rischke, Horst Stöcker and Giorgio Torrieri Quark Matter.
Akihiko Monnai Department of Physics, The University of Tokyo Collaborator: Tetsufumi Hirano V iscous Hydrodynamic Expansion of the Quark- Gluon Plasma.
Microscopic Understanding of ultrarel. HIC – How dissipative is the RHIC matter ? C. Greiner, 30th Course of Intl. School of Nuclear Physics, Erice-Sicily,
Heavy ion collisions at the LHC – theory C. Greiner Johann Wolfgang Goethe-Universität Frankfurt Institut für Theoretische Physik From SPS to RHIC to LHC.
Nuclear Many-Body Physics at High Energies: from Fixed Target Experiments to the EIC Ivan Vitev T-2, Los Alamos National Laboratory.
High Pt physics with TOF ALICE B.V.Zagreev ITEP
QCD Plasma Thermalization and Collective Flow Effects Zhe Xu CCAST, Beijing, March 23, 2008.
Kang Seog Lee Chonnam National University, Korea Dynamical Recombination model of QGP Introduction – recombination model Dynamic recomination calculation.
Jet Propagation & Mach Cone Evolution in (3+1)d Ideal Hydrodynamics Barbara Betz, Miklos Gyulassy, Dirk Rischke, Horst Stöcker and Giorgio Torrieri 05.
The importance of multiparticle collisions in heavy ion reactions C. Greiner The Physics of High Baryon Density IPHC Strasbourg, Sept Johann Wolfgang.
Flow fluctuation and event plane correlation from E-by-E Hydrodynamics and Transport Model Victor Roy Central China Normal University, Wuhan, China Collaborators.
Dynamical equilibration of strongly- interacting ‘infinite’ parton matter Vitalii Ozvenchuk, in collaboration with E.Bratkovskaya, O.Linnyk, M.Gorenstein,
PHOTONS AND EVOLUTION OF A CHEMICALLY EQUILIBRATING AND EXPANDING QGP AT FINITE BARYON DENSITY Shanghai Institute of Applied Physics Jiali Long, Zejun.
1 Transport description of viscous effects Che-Ming Ko Texas A&M University  Introduction  A multi-phase transport (AMPT) model  Anisotropic flow -
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.
Hydrodynamical behaviour in heavy ion collisions within parton cascade calculations Zhe Xu BNL, April 22, 2008 with A. El, O. Fochler, C. Greiner and H.
Heavy-Ion Physics - Hydrodynamic Approach Introduction Hydrodynamic aspect Observables explained Recombination model Summary 전남대 이강석 HIM
Heavy Quark Energy Loss with Twist Expansion Approach Ben-Wei Zhang Institute of Particle Physics Central China Normal Univeristy CCAST, Beijing --- Augest.
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.
JET Collaboration Meeting June 17-18, 2014, UC-Davis1/25 Flow and “Temperature” of the Parton Phase from AMPT Zi-Wei Lin Department of Physics East Carolina.
Enke Wang (Institute of Particle Physics, Huazhong Normal University) I. Introduction II. Ineraction Potential with Flow III.Flow Effects on Light Quark.
Enke Wang (Institute of Particle Physics, Huazhong Normal University) I.Jet Quenching in QCD-based Model II.Jet Quenching in High-Twist pQCD III.Jet Tomography.
Thermalization of the quark gluon matter in ultrarelativistic heavy ion collisions Zhe Xu Weihai, August 14, 2009 Institut für Theoretische Physik Goethe-Universität.
Shear Viscosity and Collective Flow in Heavy Ion Collisions within Parton Cascade Calculations Zhe Xu, Carsten Greiner Trento, Sept. 17, 2009 Institut.
Comparisons between hydrodynamics and transport calculations Zhe Xu WPCF, Krakow, Sept. 11, 2008.
Collectivity in a Parton Cascade Zhe Xu BNL, April 30, 2008 with A. El, O. Fochler, C. Greiner and H. Stöcker.
Production, energy loss and elliptic flow of heavy quarks at RHIC and LHC Jan Uphoff with O. Fochler, Z. Xu and C. Greiner Hard Probes 2010, Eilat October.
From microscopic interactions to the dynamics of the fireball in collaboration with: I.Bouras, A. El, O. Fochler, M. Greif, F. Reining, F. Senzel, J. Uphoff,
Radiative transport: comparisons between BAMPS and viscous hydro Zhe Xu with I.Bouras, A.El, O.Fochler, F.Lauciello, E.Molnar, H.Niemi, C.Greiner, D.H..Rischke.
Akihiko Monnai Department of Physics, The University of Tokyo Collaborator: Tetsufumi Hirano V iscous Hydrodynamic Evolution with Non-Boost Invariant Flow.
Duke University 野中 千穂 Hadron production in heavy ion collision: Fragmentation and recombination in Collaboration with R. J. Fries (Duke), B. Muller (Duke),
Heavy quarks and charmonium at RHIC and LHC within a partonic transport model Jan Uphoff with O. Fochler, Z. Xu and C. Greiner XLIX International Winter.
Jet Quenching of Massive Quark in Nuclear Medium Ben-Wei Zhang Institute of Particle Physics Central China Normal Univeristy ICHEP, Beijing --- Augest.
The puzzling relation between the RAA and the v2 for heavy mesons in a Boltzmann and in a Langevin approach F. Scardina, S.K. Das, S. Plumari, V.Greco.
Hydro + Cascade Model at RHIC
Johann Wolfgang Goethe-Universität Frankfurt
STAR and RHIC; past, present and future.
Modification of Fragmentation Function in Strong Interacting Medium
Introduction Results Methods Conclusions
QGP at RHIC: Seen through Modified Jet Fragmentation
of Hadronization in Nuclei
Modified Fragmentation Function in Strong Interaction Matter
Presentation transcript:

Microscopic Understanding of ultrarel. HIC – parton cascade and dissipative phenomena C. Greiner, Johann Wolfgang Goethe-Universität Frankfurt Institut für Theoretische Physik in collaboration with: I.Bouras, L. Chen, A. El, O. Fochler, J. Uphoff, Zhe Xu - fast thermalization within a pQCD cascade - viscosity calculation by Navier-Stokes and Israel-Stewart - elliptic flow … - dissipative shocks list of contents

QCD thermalization using parton cascade VNI/BMS: K.Geiger and B.Müller, NPB 369, 600 (1992) S.A.Bass, B.Müller and D.K.Srivastava, PLB 551, 277(2003) ZPC: B. Zhang, Comput. Phys.Commun. 109, 193 (1998) MPC: D.Molnar and M.Gyulassy, PRC 62, (2000) AMPT: B. Zhang, C.M. Ko, B.A. Li, and Z.W. Lin, PRC 61, (2000) BAMPS: Z. Xu and C. Greiner, PRC 71, (2005); 76, (2007)

BAMPS: B oltzmann A pproach of M ulti P arton S catterings A transport algorithm solving the Boltzmann-Equations for on-shell partons with pQCD interactions new development ggg gg, radiative „corrections“ (Z)MPC, VNI/BMS, AMPT Elastic scatterings are ineffective in thermalization ! Inelastic interactions are needed ! Xiong, Shuryak, PRC 49, 2203 (1994) Dumitru, Gyulassy, PLB 494, 215 (2000) Serreau, Schiff, JHEP 0111, 039 (2001) Baier, Mueller, Schiff, Son, PLB 502, 51 (2001)

J.F.Gunion, G.F.Bertsch, PRD 25, 746(1982) T.S.Biro at el., PRC 48, 1275 (1993) S.M.Wong, NPA 607, 442 (1996) screened partonic interactions in leading order pQCD screening mass: LPM suppression : the formation time  g : mean free path radiative part elastic part

Stochastic algorithm P.Danielewicz, G.F.Bertsch, Nucl. Phys. A 533, 712(1991) A.Lang et al., J. Comp. Phys. 106, 391(1993) for particles in  3 x with momentum p 1,p 2,p 3... collision probability: cell configuration in space 3x3x

Initial production of partons minijets string matter color glass condensate

: thermalization! Hydrodynamic behavior! 2-2: NO thermalization simulation pQCD simulation pQCD, only 2-2 at collision center: x T <1.5 fm,  z < 0.4 t fm of a central Au+Au at s 1/2 =200 GeV Initial conditions: minijets p T >1.4 GeV; coupling  s =0.3 p T spectra

gg  gg: small-angle scatterings gg  ggg: large-angle bremsstrahlung distribution of collision angles at RHIC energies

time scale of thermalization  = time scale of kinetic equilibration. Theoretical Result !

Transport Rates Z. Xu and CG, PRC 76, (2007) Transport rate is the correct quantity describing kinetic equilibration. Transport collision rates have an indirect relationship to the collision-angle distribution.

Transport Rates Large Effect of 2-3 !

Shear Viscosity  From Navier-Stokes approximation From Boltzmann-Eq. relation between  and R tr Z. Xu and CG, Phys.Rev.Lett.100:172301,2008.

Ratio of shear viscosity to entropy density in 2 3 AdS/CFT RHIC

Shear viscosity from kinetic theory – part II Boltzmann Equation Kinetic: Hydro: + with for (0+1) dim gluon gas A. El, A. Muronga, Z. Xu and CG, arXiv: …

Shear viscosity from Israel-Stewart theory

vs BAMPS 0.18

Validity of Israel-Stewart in (0+1)Dim Israel-StewartBAMPS

Validity of Israel-Stewart in (0+1)Dim (from BAMPS)‏

Elliptic Flow and Shear Viscosity in 2-3 at RHIC 2-3 Parton cascade BAMPS Z. Xu, CG, H. Stöcker, PRL 101:082302,2008 viscous hydro. Romatschke, PRL 99, ,2007  /s at RHIC > 0.08 Z. Xu

Rapidity Dependence of v 2 : Importance of 2-3! BAMPS evolution of transverse energy

more details on elliptic flow at RHIC … moderate dependence on critical energy density  /s at RHIC: Z. Xu and CG, arXiv:

… looking on transverse momentum distributions gluons are not simply pions … light quarks have to be included need hadronization (and models) to understand the particle spectra

Barbara Betz, Dirk Rischke, Horst Stöcker, Giorgio Torrieri Mach Cones in Ideal Hydrodynamics Box Simulation Bjorken Expansion

Parton cascade meets ideal shocks: Riemann problem λ = 0.1 fm λ = 0.01 fm λ = fm Tleft = 400 MeV Tright = 200 MeV t = 1.0 fm/c I. Bouras

Time evolution of viscous shocks Tleft = 400 MeV Tright = 320 MeV η/s = 1/(4 π) t=0.5 fm/c t=1.5 fm/c t=3 fm/c t=5 fm/c

Viscous shocks η/s ~ Tleft = 400 MeV - Tright = 320 MeV,t = 3.0 fm/c

Comparison to Israel-Stewart Comparison to full pQCD transport η/s = 0.02 η/s = 0.1 η/s ~ Tleft = 400 MeV Tright = 320 MeV t = 3 fm/c t = 1.6 fm/c

Inelastic/radiative pQCD interactions ( ) in BAMPS explain: fast thermalization large collective flow small shear viscosity of QCD matter at RHIC realistic jet-quenching of gluons Summary Future/ongoing analysis and developments: light and heavy quarks jet-quenching (Mach Cones, ridge) hadronisation and afterburning (UrQMD) needed to determine how imperfect the QGP at RHIC and LHC can be … and dependence on initial conditions

backup

Semiclassical kinetic theory: Validity of kinetic transport - relation to shear viscosity Quantum mechanis: quasiparticle limit:

R AA ~ 0.06 cf. S. Wicks et al. Nucl.Phys.A784, 426 nuclear modification factor central (b=0 fm) Au-Au at 200 AGeV O. Fochler et al Quenching of jets first realistic 3d results with BAMPS arXiv:

LPM-effect transport model: incoherent treatment of gg  ggg processes  parent gluon must not scatter during formation time of emitted gluon discard all possible interference effects (Bethe-Heitler regime) ktkt CM frame p1p1 p2p2 lab frame ktkt  = 1 / k t total boost O. Fochler

inclusion of light quarks is mandatory ! … lower color factor comparison to other approaches … LPM bremsstrahlung jet fragmentation scheme … possible improvements of microscopic treatment