12–18 Aug 2012
US/Eastern timezone

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A Running Coupling Explanation of the Surprisingly Transparency of the QGP at LHC

16 Aug 2012, 15:40
20m
Diplomat

Diplomat

Speaker

Alessandro Buzzatti (Columbia University)

Description

The CUJET1.0 Monte Carlo Jet Energy loss model is applied to predict the jet flavor, centrality and density dependence of the nuclear modification factor $R_{AA}$ and the elliptic flow $v_2$ at RHIC and LHC. Running coupling effects due to combined $x$, $k_\perp$ and $q_\perp$ evolution are included for the first time in the dynamical DGLV opacity expansion framework and are shown to provide a natural dynamical QCD tomographic solution to the surprising transparency$^1$ of the quark gluon plasma produced at LHC as suggested by $p_T>10$ GeV $R_{AA}$ data from ALICE, ATLAS, and CMS. (Ref: 1: W.H.Horowitz et al, NPA872(2011)265, A.Buzzatti et al, PRL108(2012)022301, B.Betz et al arXiv:1201.0281 [nucl-th])

Primary author

Alessandro Buzzatti (Columbia University)

Co-author

Miklos Gyulassy (Columbia University)

Presentation materials

Peer reviewing

Paper

Paper files: