The Surprising Transparency of the sQGP at LHC

Details The Surprising Transparency of the sQGP at LHC The Surprising Transparency of the sQGP at LHC

2011-04-26

arxiv.org/abs/1104.4958v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 8 figures

Scientific paper

We present parameter-free predictions of the nuclear modification factor, R_{AA}^pi(p_T,s), of high p_T pions produced in Pb+Pb collisions at sqrt{s}_{NN}=2.76 and 5.5 ATeV based on the WHDG/DGLV (radiative+elastic+geometric fluctuation) jet energy loss model. The initial quark gluon plasma (QGP) density at LHC is constrained from a rigorous statistical analysis of PHENIX/RHIC pi^0 quenching data at sqrt{s}_{NN}=0.2 ATeV and the charged particle multiplicity at ALICE/LHC at 2.76 ATeV. Our perturbative QCD tomographic theory predicts significant differences between jet quenching at RHIC and LHC energies, which are qualitatively consistent with the p_T-dependence and normalization---within the large systematic uncertainty---of the first charged hadron nuclear modification factor, R^{ch}_{AA}, data measured by ALICE. However, our constrained prediction of the central to peripheral pion modification, R^pi_{cp}(p_T), for which large systematic uncertainties associated with unmeasured p+p reference data cancel, is found to be over-quenched relative to the charged hadron ALICE R^{ch}_{cp} data in the range 5

Affiliated with

Also associated with

No associations

Rating

The Surprising Transparency of the sQGP at LHC does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Surprising Transparency of the sQGP at LHC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Surprising Transparency of the sQGP at LHC will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-296687