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

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 $$ eta /sapprox {t}^3/widehat{q} $$ falls close to the unitarity bound, 1/4 $$ pi $$ , in the range (1–2)tc. detailed comparisons of the cujet2.0 and cujet3.0 models reveal the fact that remarkably different $$ widehat{q}(t) $$ dependence could be consistent with the same r aa data and could only be distinguished by anisotropy observables. these _ndings demonstrate clearly the inadequacy of focusing on the jet path averaged quantity $$ leftlangle widehat{q}rightrangle $$ as the only relevant medium property to characterize jet quenching, and point to the crucial roles of other essential factors beyond just the $$ leftlangle widehat{q}rightrangle $$ , such as the chromo electric and magnetic composition of the plasma, the screening masses and the running couplings at multiple scales which all strongly influence jet energy loss.