Longitudinal broadening of quenched jets in turbulent color fields.
Longitudinal broadening of quenched jets in turbulent color fields.
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DOI：
10.1103/physrevlett.99.042301
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发表时间：
2006-11
影响因子：
8.6
通讯作者：
Abhijit Majumder;Berndt Müller;Steffen A. Bass
中科院分区：
文献类型：
--
作者：
Abhijit Majumder;Berndt Müller;Steffen A. Bass
与高能重离子碰撞中产生的高动量触发强子相关的中等横向动量粒子的近侧分布与射流锥体相比，其分布速度更快。这种扩大的分布被认为包含了触发强子的祖部分子损失的能量。我们表明，这种展宽可以解释为从介质内部的硬部分辐射的胶子的最终状态偏转，通过在等离子体不稳定性存在下出现的软的、横向的、湍流的色场。研究发现，这种效应的强度随着中等大小和密度的增加而增加，并随着相关强子能量的增加而减弱。
The nearside distribution of particles at intermediate transverse momentum, associated with a high momentum trigger hadron produced in a high energy heavy-ion collision, is broadened in rapidity compared with the jet cone. This broadened distribution is thought to contain the energy lost by the progenitor parton of the trigger hadron. We show that the broadening can be explained as the final-state deflection of the gluons radiated from the hard parton inside the medium by soft, transversely oriented, turbulent color fields that arise in the presence of plasma instabilities. The magnitude of the effect is found to grow with medium size and density and diminish with increasing energy of the associated hadron.