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arXiv 1402.1671hep-ph
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硬前向$1\to 1$部分子过程中的相干介质诱导胶子辐射

Coherent medium-induced gluon radiation in hard forward $1\to 1$ partonic processes

Stéphane Peigné, François Arleo, Rodion Kolevatov

摘要:

我们重新审视了与高能部分子通过核介质的硬散射和前向(小角度)散射相关的介质诱导相干辐射。我们考虑所有的$1\to 1$硬前向过程($g \to g$,$q \to q$,$q \to g$和$g \to q$),并严格推导出诱导相干辐射的能谱的所有订单中的不透明度展开和库仑散射势的特定情况下。我们得到一个简单的一般公式诱导的相干谱,其中包括相应的结果,以前已知的特殊情况。

英文摘要:

We revisit the medium-induced coherent radiation associated to hard and forward (small angle) scattering of an energetic parton through a nuclear medium. We consider all $1\to 1$ hard forward processes ($g \to g$, $q \to q$, $q \to g$ and $g \to q$), and derive the energy spectrum of induced coherent radiation rigorously to all orders in the opacity expansion and for the specific case of a Coulomb scattering potential. We obtain a simple general formula for the induced coherent spectrum, which encompasses the results corresponding to previously known special cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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