摘要
提出了一种夸克-胶子等离子体中的喷注-光子转换机制。对于热光子而言,在热夸克-胶子媒介中的喷注-光子转换是一个非常重要的热光子来源。喷注可以通过次级康普顿散射和湮灭过程来实现喷注-光子转换。此外,还考虑了在快光子产生过程中起重要修正作用的胶子-光子贡献,其中,核遮蔽效应和同位旋效应也被引入到了部分子模型中。
We develop a jet-photon conversion mechanism in the expanding quark-gluon plasma.The jet-photon conversion in hot quark-gluon medium is a vital source of the thermal photon production.The jet converts into photons via the secondary Compton and annihilation processes in the quark-gluon plasma.The gluon-photons are also considered in the calculation of prompt photons which includes the effect of the shadowing and isospin of nucleus.We find that the prompt gluon-photons are also an important modification to prompt photons.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2010年第1期16-22,共7页
Nuclear Physics Review
基金
National Natural Science Foundation of China(10665003)~~
