Consistency of Perfect Fluidity and Jet Quenching in Semi-Quark-Gluon Monopole Plasmas
Jiechen Xu1 , Jinfeng Liao2,3** , Miklos Gyulassy1**
1 Department of Physics, Columbia University, New York 10027, USA2 Physics Department and CEEM, Indiana University, Bloomington 47408, USA3 RIKEN BNL Research Center, Bldg. 510A, Brookhaven National Laboratory, New York 11973, USA
Abstract ：We utilize a new framework, CUJET3.0, to deduce the energy and temperature dependence of the jet transport parameter, q^ (E <10 GeV, T ), from a combined analysis of available data on nuclear 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 hydrodynamic 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 T c (aka 'magnetic scenario' of Liao and Shuryak), and (iii) thermodynamic properties constrained by lattice QCD data. CUJET3.0 reduces to v2.0 at high temperatures T> 400 MeV, while greatly enhances q^ 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 ∼ T 3 q^ ∼0.1 near T c .
收稿日期: 2015-07-31
出版日期: 2015-10-02
:
25.75.-q
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
12.38.Mh
(Quark-gluon plasma)
24.85.+p
(Quarks, gluons, and QCD in nuclear reactions)
13.87.-a
(Jets in large-Q2 scattering)
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2015, Vol. 32 
