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Parton energy loss in hot and dense QCD medium

机译:热和致密QCD介质中的Parton能量损失

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摘要

Induced gluon radiation and energy loss of heavy quark in hot and dense QCD media are discussed. Using the light-cone path integral approach, an analytical formula of the energy loss of heavy quark is derived. The results show that the quark energy loss obviously depends on the mass of quark, i.e.a remarkable suppression occurs in the case of heavy quark comparing to a light one. The radiative energy loss of energetic quark is proportional to L~2, where L is the length of the medium. The dependence of energy loss on L~2 turns to L with decreasing quark energy.
机译:讨论了稠密QCD介质中重夸克的胶子辐射诱导和能量损失。利用光锥路径积分法,推导了重夸克能量损失的解析公式。结果表明,夸克的能量损失明显取决于夸克的质量,即与轻的夸克相比,重的夸克有明显的抑制作用。高能夸克的辐射能量损失与L〜2成正比,其中L是介质的长度。随着夸克能量的减少,能量损失对L〜2的依赖性变为L。

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