Quark-gluon plasma;
Energy loss;
Jet suppression;
Heavy quarks;
PB-PB COLLISIONS;
ENERGY-LOSS;
NUCLEAR MODIFICATION;
FRAGMENTATION;
SPECTRA;
PLUS;
D O I:
10.1016/j.nuclphysa.2014.08.052
中图分类号:
O57 [原子核物理学、高能物理学];
学科分类号:
070202 ;
摘要:
Jet suppression is one of the most important probes in studying the properties of QCD matter created at RHIC and LHC experiments. In this proceedings, we concentrate on unexpected (puzzling) suppression data from these experiments, and on the question whether (and to what extent) those puzzling data can be explained from pQCD perspective. To that end, we will present our predictions, which are based on our recent improvements in the energy loss calculations that take into account: (i) theoretical formalism which includes finite size dynamical QCD medium with finite magnetic mass effects and running coupling, and (ii) numerical procedure which includes path-length and multi-gluon fluctuations. Our theoretical predictions, jointly generated for RHIC and LHC by using the same theoretical procedure, same parameter set, and no free parameters, show a very good agreement with the available central collision data. This good agreement strongly suggests that pQCD calculations in quark gluon-plasma can provide a reasonable description of the underlying jet physics at RHIC and LHC. (C) 2014 Elsevier B.V. All rights reserved.
机构:
Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
Wayne State Univ, Dept Phys & Astron, 666 W Hancock St, Detroit, MI 48201 USALawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
Cao, Shanshan
Luo, Tan
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机构:
Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China
Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R ChinaLawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
Luo, Tan
Qin, Guang-You
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机构:
Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China
Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R ChinaLawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
Qin, Guang-You
Wang, Xin-Nian
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h-index: 0
机构:
Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China
Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R ChinaLawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA