12-15 April 2016
BNL Physics Building
US/Eastern timezone

Consistency of perfect fluidity and high pT parton propagation in semi-quark-gluon-monopole plasmas

15 Apr 2016, 09:30
Large Seminar Room (BNL Physics Building)

Large Seminar Room

BNL Physics Building


Dr Jiechen Xu (Indiana University)


In analyzing high pT parton propagation in QGPs, a majority of perturbative QCD (pQCD) based models currently face two significant challenges: (1) simultaneously describing data of high pT single hadrons’ RAA + v2 at RHIC + LHC; (2) explaining the “perfect fluid” like shear viscous transport properties of the sQGP. To overcome both, we build a new phenomenological framework -- CUJET3.0 -- where the full nonperturbative chromo-electromagnetic structure of the sQGP in the critical transition regime is lattice-compatibly embedded in a microscopic semi-Quark-Gluon-Monopole Plasma (sQGMP) model, and where the sQGMP is systematically integrated into a pQCD energy loss framework for jet quenching studies. We show that this CUJET3.0 (= pQCD + sQGMP) framework solves both puzzles thanks to a dominating magnetic monopole component of the matter near Tc. More significantly, it provides a quantitative connection between the shear viscosity (η/s) and the jet transport parameter (qhat) that enables one to deduce the T = 160−600 MeV dependence of the QGP’s η/s from high pT data constrained qhat. We further study the effects that the detailed composition of chromo-electric charges and chromo-magnetic monopoles in the near-Tc regime has on high pT light hadron and open heavy flavor observables, and provide results based on the sQGMP model that can be tested with future RHIC and LHC measurements. References [1] Jiechen Xu, Jinfeng Liao, Miklos Gyulassy, arXiv:1508.00552 [hep-ph]. [2] Jiechen Xu, Jinfeng Liao, Miklos Gyulassy, Chin. Phys. Lett. 32, 092501 (2015). [3] Jiechen Xu, Alessandro Buzzatti, Miklos Gyulassy, JHEP 1408, 063 (2014).

Primary author

Dr Jiechen Xu (Indiana University)

Presentation Materials