Consistency of Perfect Fluidity and Jet Quenching in Semi-Quark-Gluon Monopole Plasmas  

作　　者：徐杰谌 廖劲峰 Miklos Gyulassy 

机构地区：[1]Department of Physics, Columbia University, New York 10027, USA [2]Physics Department and CEEM, Indiana University, Bloomington 47408, USA [3]RIKEN BNL Research Center, Bldg. 510A, Brookhaven National Laboratory, New York 11973, USA

出　　处：《Chinese Physics Letters》2015年第9期25-30,共6页中国物理快报（英文版）

基　　金：Supported by the USA DOE Nuclear Science under Grant No DE-FG02-93ER40764;the National Science Foundation under Grant No PHY-1352368;the RIKEN BNL Research Center

摘　　要：We utilize a new framework, CUJET3.0, to deduce the energy and temperature dependence of the jet trans- port parameter, q （E 〉 10 GeV, T）, from a combined analysis of available data on nudear modification factor and azimuthal asymmetries from high energy nuclear collisions at RHIC/BNL and LHC/CERN. Extending a previous perturbative-QCD based jet energy loss model （known as CUJET2.0） with （2＋1）D viscous hydrody- namic bulk evolution, this new framework includes three novel features of nonperturbative physics origin; （i） the Polyakov loop suppression of color-electric scattering （aka ＇semi-QGP＇ of Pisarski et al.）, （ii） the enhancement of jet scattering due to emergent magnetic monopoles near Tc （aka ＇magnetic scenario＇ of Liao and Shuryak）, and Oii） thermodynamic properties constrained by lattice QCD data. CUJET3.0 reduces to v2.0 at high tem- peratures T 〉400 MeV, while greatly enhances ~ near the QCD deconfinement transition temperature range. This enhancement accounts well for the observed elliptic harmonics of jets with pT 〉10 GeV. Extrapolating our data-constrained q down to thermal energy scales, E-2 GeV, we find for the first time a remarkable consistency between high energy jet quenching and bulk perfect fluidity with η/s^T3/q^0.1 near To.We utilize a new framework, CUJET3.0, to deduce the energy and temperature dependence of the jet trans- port parameter, q （E 〉 10 GeV, T）, from a combined analysis of available data on nudear modification factor and azimuthal asymmetries from high energy nuclear collisions at RHIC/BNL and LHC/CERN. Extending a previous perturbative-QCD based jet energy loss model （known as CUJET2.0） with （2＋1）D viscous hydrody- namic bulk evolution, this new framework includes three novel features of nonperturbative physics origin; （i） the Polyakov loop suppression of color-electric scattering （aka ＇semi-QGP＇ of Pisarski et al.）, （ii） the enhancement of jet scattering due to emergent magnetic monopoles near Tc （aka ＇magnetic scenario＇ of Liao and Shuryak）, and Oii） thermodynamic properties constrained by lattice QCD data. CUJET3.0 reduces to v2.0 at high tem- peratures T 〉400 MeV, while greatly enhances ~ near the QCD deconfinement transition temperature range. This enhancement accounts well for the observed elliptic harmonics of jets with pT 〉10 GeV. Extrapolating our data-constrained q down to thermal energy scales, E-2 GeV, we find for the first time a remarkable consistency between high energy jet quenching and bulk perfect fluidity with η/s^T3/q^0.1 near To.

关 键 词：QGP QCD LHC 

分 类 号：O572.33[理学—粒子物理与原子核物理]