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arXiv 1509.02936hep-phnucl-exnucl-th
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从QCD演变而来的射流淬火

Jet Quenching from QCD Evolution

Yang-Ting Chien, Alexander Emerman, Zhong-Bo Kang, Grigory Ovanesyan, Ivan Vitev

备注：
21 pages 6 figures; appendix, figure and references added
发表信息：
Phys. Rev. D 93, 074030 (2016)
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摘要：

Glauber胶子软共线有效理论的最新进展导致了一种新方法的发展，该方法给出了与核子和重核反应中包含强子产生的统一描述。我们展示了如何这种方法，广义的DGstrom演化方程的基础上，包括最终状态介质诱导的部分子阵雨，可以结合应用喷射淬火现象学的初始状态的影响。我们证明，传统的部分子能量损失计算可以被视为一般QCD演化框架中特殊的软胶子发射极限。我们目前的SCET $_{\rm G}$为基础的结果的抑制包括在$\sqrt{s_{NN}}=2.76$ TeV铅铅碰撞在大型强子对撞机的实验数据的带电强子和中性π介子生产的唯象比较。我们还显示了即将到来的$\sqrt{s_{NN}} \simeq 5.1$ TeV铅+铅运行在大型强子对撞机的理论预测。

英文摘要：

Recent advances in soft-collinear effective theory with Glauber gluons have led to the development of a new method that gives a unified description of inclusive hadron production in reactions with nucleons and heavy nuclei. We show how this approach, based on the generalization of the DGLAP evolution equations to include final-state medium-induced parton showers, can be combined with initial-state effects for applications to jet quenching phenomenology. We demonstrate that the traditional parton energy loss calculations can be regarded as a special soft-gluon emission limit of the general QCD evolution framework. We present phenomenological comparison of the SCET$_{\rm G}$-based results on the suppression of inclusive charged hadron and neutral pion production in $\sqrt{s_{NN}}=2.76$ TeV lead-lead collisions at the Large Hadron Collider to experimental data. We also show theoretical predictions for the upcoming $\sqrt{s_{NN}} \simeq 5.1$ TeV Pb+Pb run at the LHC.

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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