Light from cascading partons in relativistic heavy-ion collisions.
Light from cascading partons in relativistic heavy-ion collisions.
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DOI：
10.1103/physrevlett.90.082301
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发表时间：
2002-09
影响因子：
8.6
通讯作者：
S. Bass;B. Müller;D. K. Srivastava
中科院分区：
文献类型：
--
作者：
S. Bass;B. Müller;D. K. Srivastava
在部分子级联模型中，我们计算了康普顿过程和湮灭过程中高能光子的产生以及夸克的碎裂。部分子的多重散射被认为是导致高能量光子的大量产生，当包括由于终态辐射的部分子倍增时，高能量光子进一步上升。光子产率被发现是直接成正比的硬碰撞的数量，从而提供了有价值的信息的预平衡反应动力学。
We calculate the production of high energy photons from Compton and annihilation processes as well as fragmentation off quarks in the parton cascade model. The multiple scattering of partons is seen to lead to a substantial production of high energy photons, which rises further when parton multiplication due to final state radiation is included. The photon yield is found to be directly proportional to the number of hard collisions and thus provides valuable information on the preequilibrium reaction dynamics.