Quarkonium production in association with a photon and nuclear effects

被引：0

作者：

Mariotto, C. Brenner ^{[1
]}

Machado, M. V. T. ^{[2
]}

机构：

[1] Univ Fed Rio Grande, Inst Mat, Estatistica & Fis, BR-96201900 Grande, RS, Brazil

[2] Univ Fed Pampa Campus Bage, Ctr Ciencias Exatas & Tecnol, BR-96400970 Bage, RS, Brazil

来源：

XI HADRON PHYSICS | 2010年 / 1296卷

关键词：

Quarkonium; Photons; Ultrarelativistic nuclear reactions; GLUON FRAGMENTATION; J/PSI PRODUCTION; J-PSI; CHARMONIUM; UPSILON; SOFT;

D O I：

暂无

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：

In this contribution we investigate the influence of nuclear effects in hadroproduction of quarkonium associated with a photon. At high energies, such processes provide a probe of the QCD dynamics as it is dependent on the nuclear gluon distribution, and could be usefull in constraining the behavior of the nuclear gluon distribution in proton-nucleus and nucleus-nucleus collisions. Here we study the influence of the shadowing effect, in the production of J/Psi+gamma at the LHC and estimate the PT dependence of the nuclear modification factors. The theoretical framework considered for J/Psi+gamma production is the non-relativistic QCD (NRQCD) factorization formalism.

引用

页码：242 / +

页数：2

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