Intermediate Mass Dilepton Production in a Chemically Equilibrating Quark-Gluon Matter

贺泽君; 周文杰; 张家驹; 刘波

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Intermediate Mass Dilepton Production in a Chemically Equilibrating Quark-Gluon Matter

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Dilepton production during the chemical equilibration of quark-gluon matter with a finite baryon density has been studied. We find that due to the slowing down of the cooling rate and the high initial temperature of the quark-gluon matter produced at RHIC energies, the quark phase contribution to dileptons with intermediate masses is significantly heightened and is much larger than that calculated by the evolution of the thermodynamic equilibrium system. The latter has shown an enhancement of intermediate mass dileptons from the quark phase. Therefore, such an enhancement of dileptons should be a signature for quark-gluon matter formation.

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《中国物理快报：英文版》 |2001年第10期|1331-1333|共3页
作者
贺泽君; 周文杰; 张家驹; 刘波;
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作者单位

Center of Theoretical Nuclear Physics;

National Laboratory of Heavy Ion Accelerator;

Lanzhou 730000;

Institute of Nuclear Research;

Chinese Academy of Sciences;

Shanghai 201800;

Institute of High Energy Physics;

Chinese Academy of Sciences;

Beijing 100039;

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原文格式 PDF
正文语种 chi
中图分类原子核物理学、高能物理学;
关键词
formation.; quark; phase.;

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1. Intermediate mass dilepton production in a chemically equilibrating quark-gluon matter [J] . HE ,Ze-Jun ,ZHANG . 核技术：英文版 . 2003,第1期
2. Dilepton Production in a Chemically Equilibrating Quark—Gluon Matter [J] . 贺泽君 ,刘波 ,等 . 中国物理快报：英文版 . 2002,第7期
3. Intermediate mass dilepton production during the chemical equilibration of quark gluon plasma [J] . ZHOUWen－Jie ,HEZe－Jun . 核技术：英文版 . 2001,第3期
4. Intermediate Mass Dileptons from the Passage of Jets and High Energy Photons through Quark-Gluon Plasma [J] . 傅永平 ,李云德 . 中国物理快报：英文版 . 2010,第10期
5. Thermal Charmed Quark Contribution to Dileptons in Chemically Equilibrating Quark—Gluon Matter [J] . 贺泽君 ,龙家丽 ,LUZhao-Hui . 中国物理快报：英文版 . 2003,第6期
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Intermediate Mass Dilepton Production in a Chemically Equilibrating Quark-Gluon Matter

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