Leading order, next-to-leading order, and nonperturbative parton collision kernels: Effects in static and evolving media

被引：6

作者：

Yazdi, Rouzbeh Modarresi ^{[1
]}

Shi, Shuzhe ^{[1
,2
]}

Gale, Charles ^{[1
]}

Jeon, Sangyong ^{[1
]}

机构：

[1] McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada

[2] SUNY Stony Brook, Ctr Nucl Theory, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW C | 2022年 / 106卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

RADIATIVE ENERGY-LOSS; GLUON RADIATION; SCATTERING; NUCLEI; QCD; QUARKS;

D O I：

10.1103/PhysRevC.106.064902

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：

Energetic partons traveling in a strongly interacting medium lose energy by emitting radiation and through collisions with medium constituents. Nonperturbative, next-to-leading-order and leading-order collision kernels are implemented within AMY-McGill formalism. The resulting gluon emission rates are then evaluated and compared by considering scattering occurring in a brick of quark-gluon plasma, as well as in a realistic simulation of Pb + Pb collisions at root s = 2.76 ATeV using MARTINI. We find that the variations in quenching of hard partons resulting from using different kernels can be important, depending on the overall value of the strong-coupling constant alpha s.

引用

页数：10

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