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Article overview
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Anisotropic Jet Quenching in semi-Quark-Gluon Plasmas with Magnetic Monopoles in Ultrarelativistic Heavy Ion Collisions | | Jiechen Xu
; Jinfeng Liao
; Miklos Gyulassy
; | | Date: |
13 Nov 2014 | | Abstract: | We present a new jet quenching framework, CUJET3.0, that is shown to account
well for both high $p_T$ single inclusive hadron suppression $R_{AA}$ and its
azimuthal anisotropy $v_2$ in heavy ion collisions at both RHIC and the LHC
energies. CUJET3.0 generalizes our previous pQCD/HTL based CUJET2.0 model that
couples running coupling DGLV jet energy loss to (2+1)D viscous hydrodynamic
backgrounds constrained by bulk flow observables. Version 3.0 reduces to 2.0 in
the high temperatures $T > 400$ MeV limit, but it includes two new
nonperturbative effects in the QCD transition temperature range $Tsim
m
140-250$ MeV: (1) the Polyakov loop suppression of color-electric scattering
(aka "semi-QGP" of Pisarski et al) and (2) the enhancement of scattering due to
emergent magnetic monopoles near $T_c$ (aka "magnetic scenario" of Liao and
Shuryak). The parameters of the model are constrained by lattice QCD data and
the jet medium coupling is matched to asymptotic freedom in the high
temperature limit. We find that the CUJET3.0 jet transport parameter
$hat{q}(E,T)/T^3$ peaks near $T_c$ by a factor $sim 4$ above the previous
perturbative CUJET2.0 estimates, approaching the hybrid AdS/SYM holography of
Liu et al, but it has very strong nonconformal $E$ and $T$ dependence up to
$Tsim 400$ MeV. Extrapolating down to $E=2$ GeV, we find a striking new
connection between bulk perfect fluidity with $eta/ssim 0.1$ near $T_c$ and
high $p_T$ high $T$ perturbative jet quenching. | | Source: | arXiv, 1411.3673 | | Services: | Forum | Review | PDF | Favorites | |
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