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Cold Nuclear Matter Effects on Isolated Prompt Photon and Isolated Prompt Photon＋Jet Productions in Relativistic Heavy-Ion Collisions
  • ISSN号：0253-6102
  • 期刊名称：《理论物理通讯：英文版》
  • 时间：0
  • 分类：O571.6[理学—粒子物理与原子核物理;理学—物理] O571[理学—粒子物理与原子核物理;理学—物理]
  • 作者机构：[1]Key Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University, Wuhan 430079, China, [2]Nuclear Science Division, MS 70R0319, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
  • 相关基金：Supported by the Ministry of Education of China with Project No. NCET-09-0411; by the National Natural Science Foundation of China with Project Nos. 11075062, 11221504; by the Natural Science Foundation of Hubei Province with Project No. 2010CDA075; and by Self-Determined Research Funds of CCNU
作者： 代巍[1], 陈时勇[1], 张本威[1,2], 王思科[1]
关键词： 相对论重离子碰撞, 核物质, 光子, 孤立, 制作, 喷气, 部分子分布函数, 大型强子对撞机, isolated photon, prompt photon, photon ＋jet, cold nuclear matter, effects, heavy ion collisions, EPS09, photon production
中文摘要：

我们调查原子物质(CNM ) 在孤立的迅速的光子和孤立的迅速的光子上完成的寒冷在在由使用 EPS09 的 NLO 精确性的原子碰撞的联系喷气生产 NLO 原子 parton 分发功能和他们的错误集合。孤立的迅速的光子和孤立的迅速的 photon+jet 生产的原子修正因素由于在在 RHIC 和 LHC 的 p+A 和 A+A 反应的 CNM 效果提供改变快和最后的州的光子的横向的动量。孤立的迅速的光子和 photon+jet 上的 CNM 效果是谦虚的，这被显示出，它在低磅区域和全体的更明显的抑制给小改进在中央快的磅。在前面的快显著抑制以及 +jet 总是被观察。

英文摘要：

We investigate the cold nuclear matter （CNM） effects on isolated prompt photon and isolated prompt photon associated jet productions in nuclear collisions at the NLO accuracy by using the EPS09 NLO nuclear parton distribution functions and their error sets. Nuclear modification factors of isolated prompt photon and isolated prompt photon＋jet productions due to CNM effects in p＋A and A＋A reactions at the RHIC and the LHC are provided with varying rapidity and transverse momentum of the final state photon. It is shown that the CNM effects on isolated prompt photon and photon＋jet are modest, which give a small enhancement at low PT region and a more obvious suppression at large pT at central rapidity. At forward rapidity a pronounced suppression of γ as well as γ＋jet is always observed.

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期刊信息
  • 《理论物理通讯：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中科院理论物理所 中国物理学会
  • 主编：孙昌浦
  • 地址：北京2735邮政信箱 中国科学院理论物理研究所编辑部
  • 邮编：100190
  • 邮箱：ctp@itp.ac.cn
  • 电话：010-62551495 62541813 62550630
  • 国际标准刊号：ISSN：0253-6102
  • 国内统一刊号：ISSN：11-2592/O3
  • 邮发代号:
  • 获奖情况:
  • 首届国家期刊奖,中国科学院优秀期刊特别奖,国家期刊奖百种重点期刊,中国期刊方阵“双高”期刊
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  • 被引量:342