Bridging soft-hard transport properties of quark-gluon plasmas with CUJET3.0

作者：Jiechen Xu, Jinfeng Liao, Miklós Gyulassy · 发表于：Journal of High Energy Physics · 年份：2016 · DOI：10.1007/jhep02(2016)169 · 被引用次数：125 · 研究领域：High-Energy Particle Collisions Research、Particle physics theoretical and experimental studies、Quantum Chromodynamics and Particle Interactions

A new model (CUJET3.0) of jet quenching in nuclear collisions coupled to bulk data constrained (VISH2+1D) viscous hydrodynamic backgrounds is constructed by generalizing the perturbative QCD based (CUJET2.0) model to include two complementary non-perturbative chromodynamical features of the QCD con_nement cross-over phase transition near Tc ≈ 160 MeV: (1) the suppression of quark and gluon chromo-electric-charged (cec) degrees of freedom and (2) the emergence of chromo-magnetic-monopole (cmm) degrees of freedom. Such a semi Quark Gluon Monopole Plasma (sQGMP) microscopic scenario is tested by comparing predictions of the leading hadron nuclear modification factors, R (pT > 10GeV=c; $$ \sqrt{s} $$ ), and their azimuthal elliptic asymmetry v 2 (pT > 10GeV=c; $$ \sqrt{s} $$ ) with available data on h =π, D;B jet fragments from nuclear collisions at RHIC ( $$ \sqrt{s} = 0.2 $$ ATeV) and LHC( $$ \sqrt{s}=2.76 $$ ATeV). The cmm degrees of freedom in the sQGMP model near T c are shown to solve robustly the long standing R AA vs v 2 puzzle by predicting a maximum of the jet quenching parameter field ĝ(E; T)/T 3 near T c . The robustness of CUJET3.0 model to a number of theoretical uncertainties is critically tested. Moreover the consistency of jet quenching with observed bulk perfect uidity is demonstrated by extrapolating the sQGMP $$ \widehat{q} $$ down to thermal energy E ~ 3T scales and showing that the sQGMP shear viscosity to entropy density ratio $$ \eta /s\approx {T}^3/\wideh...