Angular-ordered parton showers with medium-modified splitting functions

被引：15

作者：

Armesto, Nestor ^{[1
,2
]}

Corcella, Gennaro ^{[3
,4
,5
,6
]}

Cunqueiro, Leticia ^{[7
]}

Salgado, Carlos A. ^{[1
,2
]}

机构：

[1] Univ Santiago de Compostela, Dept Fis Particulas, E-15706 Santiago De Compostela, Galicia, Spain

[2] Univ Santiago de Compostela, IGFAE, E-15706 Santiago De Compostela, Galicia, Spain

[3] Museo Stor Fis, I-00184 Rome, Italy

[4] Ctr Studi Ric E Fermi, I-00184 Rome, Italy

[5] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[6] INFN, Sez Pisa, I-56127 Pisa, Italy

[7] INFN, Lab Nazl Frascati, I-00044 Rome, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2009年 / 11期

关键词：

Hadronic Colliders; QCD; Jets; RADIATIVE ENERGY-LOSS; QUARK-GLUON PLASMA; QCD; FRAGMENTATION; PHYSICS; PERSPECTIVE; SIMULATION; COLLISIONS; MATTER; MODEL;

D O I：

10.1088/1126-6708/2009/11/122

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Modified Altarelli-Parisi splitting functions were recently proposed to model multi-parton radiation in a dense medium and describe jet quenching, one of the most striking features of heavy-ion collisions. We implement medium-modified splitting functions in the HERWIG parton shower algorithm, which satisfies the angular ordering prescription, and present a few parton-level results, such as transverse momentum, angle and energy-fraction distributions, which exhibit remarkable medium-induced effects. We also comment on the comparison with respect to the results yielded by other implementations of medium-modified splitting functions in the framework of virtuality-ordered parton cascades.

引用

页数：19

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