| Recursive method for opacity expansion at finite temperature |
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| 作者姓名： | 刘嘉 康忠波 王恩科 |
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| 作者单位： | 1. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China;2. Key Laboratory of Quark & Lepton Physics (Huazhong Normal University), Ministry of Education, China;3. RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, NY 11973, USA |
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| 基金项目： | Supported by National Natural Science Foundation of China (10825523,10635020,10875052); MOE of China(IRT0624); MOST of China(2008CB317106); MOE and SAFEA of China under Project (PITDU-B08033) |
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| 摘 要： | Using a reaction operator approach, we derive the multiple-scattering induced gluon number distribution function to all orders in powers of opacity at finite temperature. The detailed balance effect is analyzed by taking into account both gluon emission and absorption in a thermal medium. We also calculate virtual corrections and show that the infrared divergence cancels out in the gluon distribution function at finite temperature.
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| 关 键 词： | 有限温度 不透明度 递归方法 胶子分布函数 操作使用 多重散射 红外发散 |
| 收稿时间： | 2010-3-18 |
| 修稿时间： | 2010-4-30 |
Recursive method for opacity expansion at finite temperature |
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| LIU Jia, KANG Zhong-Bo, WANG En-ke, Institute of Particle Physics,Huazhong Normal University,Wuhan ,China Key Laboratory of Quark & Lepton Physics,Ministry of Education,China RIKEN BNL Research Center,Brookhaven National Laboratory,Upton,NY ,USA.Recursive method for opacity expansion at finite temperature[J].High Energy Physics and Nuclear Physics,2011,35(1):44-49. |
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| Authors: | LIU Jia KANG Zhong-Bo WANG En-ke Institute of Particle Physics Huazhong Normal University Wuhan China Key Laboratory of Quark & Lepton Physics Ministry of Education China RIKEN BNL Research Center Brookhaven National Laboratory Upton NY USA |
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| Institution: | LIU Jia1,2,1) KANG Zhong-Bo3,2) WANG En-ke1,3) 1 Institute of Particle Physics,Huazhong Normal University,Wuhan 430079,China 2 Key Laboratory of Quark & Lepton Physics(Huazhong Normal University),Ministry of Education,China 3 RIKEN BNL Research Center,Brookhaven National Laboratory,Upton,NY 11973,USA |
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| Abstract: | Using a reaction operator approach,we derive the multiple-scattering induced gluon number distribution function to all orders in powers of opacity at finite temperature.The detailed balance effect is analyzed by taking into account both gluon emission and absorption in a thermal medium.We also calculate virtual corrections and show that the infrared divergence cancels out in the gluon distribution function at finite temperature. |
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| Keywords: | jet-quenching non-abelian energy loss opacity expansion detailed balance |
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