[马科; 朱光喜] Department of Electronics and Information Engineering,Huazhong University of Science and Technology
[周代翠] Institue of Particle Physics,Central China Normal University
语种：
中文
关键词：
直接光子;高能核-核碰撞;喷注淬火;各向异性
关键词(英文)：
direct photon;high energy nucleus-nucleus collision;jet-quenching;azimuthal anisotropy
期刊：
原子核物理评论
ISSN：
1007-4627
年：
2010
卷：
27
期：
4
页码：
426-431
基金类别：
国家重点基础研究发展规划项目（973计划）（2008CB17100,2008CB17106）
国家自然科学基金资助项目（10635020,10575044）Acknowledgement We thanks Postdoc Lu Yan for stimulating discussion and Ph.D. Zhang Xiaoming for his help with details of the jet quenching.
The azimuthal anisotropy of high pT direct photons is investigated by using the coefficient of elliptic flow ν2 in non-central nucleus-nucleus collision at LHC energies.These photons come from radiation induced by the interaction between jet and hot/dense medium.There is π/2 difference between direct photons and hadrons for the azimuthal elliptic flow ν2.Such photons are the main source of the negative part of ν2 for direct photons.The dependence of the direct photon ν2 on the transverse momentum pT at LHC energy is found to be consistent ...
