Jet structure in heavy ion collisions

被引：131
作者：
Blaizot, J. -P. [1 ]
Mehtar-Tani, Y. [2 ]
机构：
[1] CEA Saclay, CNRS, URA2306, Inst Phys Theor Saclay, F-91191 Gif Sur Yvette, France
[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E | 2015年 / 24卷 / 11期
基金：
欧洲研究理事会;
关键词：
Perturbative QCD; jets; heavy ion collisions; jet-quenching; RADIATIVE ENERGY-LOSS; GLUON DISTRIBUTION-FUNCTIONS; PB-PB COLLISIONS; FRAGMENTATION FUNCTIONS; TRANSVERSE-MOMENTUM; ROOT-S-NN=2.76 TEV; QCD; QUARK; SUPPRESSION; SCATTERING;
D O I：
10.1142/S021830131530012X
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：
We review recent theoretical developments in the study of the structure of jets that are produced in ultra relativistic heavy ion collisions. The core of the review focusses on the dynamics of the parton cascade that is induced by the interactions of a fast parton crossing a quark-gluon plasma. We recall the basic mechanisms responsible for medium induced radiation, underline the rapid disappearance of coherence effects, and the ensuing probabilistic nature of the medium induced cascade. We discuss how large radiative corrections modify the classical picture of the gluon cascade, and how these can be absorbed in a renormalization of the jet quenching parameter (q) over cap. Then, we analyze the (wave)-turbulent transport of energy along the medium induced cascade, and point out the main characteristics of the angular structure of such a cascade. Finally, color decoherence of the in-cone jet structure is discussed. Modest contact with phenomenology is presented towards the end of the review.
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页数：54
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