Large transverse momentum dilepton production in heavy ion collisions with two-photon processes  

作　　者：傅永平 李云德 

机构地区：[1]Department of Physics,Yunnan University

出　　处：《Chinese Physics C》2011年第2期109-112,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10665003, 11065010)

摘　　要：The cold component of large transverse momentum dilepton production via semi-coherent two- photon interaction is calculated. The cold contribution is essential to the dilepton spectra in the soft region for different mass bins. The results are compared with the PHENIX experimental data at RHIC, and we find that the modification of semi-coherent two-photon processes is more evident with the rising dilepton mass bins.The cold component of large transverse momentum dilepton production via semi-coherent two- photon interaction is calculated. The cold contribution is essential to the dilepton spectra in the soft region for different mass bins. The results are compared with the PHENIX experimental data at RHIC, and we find that the modification of semi-coherent two-photon processes is more evident with the rising dilepton mass bins.

关 键 词：relativistic heavy ion collisions quark-gluon plasma two-photon processes 

分 类 号：O571.6[理学—粒子物理与原子核物理]