arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1010.0134hep-ph
收藏

夸克-胶子等离子体中从RHIC到LHC的喷流演化

Jet Evolution in the Quark-Gluon Plasma from RHIC to the LHC

S. Domdey, B. Z. Kopeliovich, H. J. Pirner

摘要:

观察到的高- $p_\perp$强子的抑制允许不同的解释。我们讨论了两种可能的情况:在情况1中,部分子的能量损失从散射在热介质中的共振物质中的末态相互作用的补充。场景2具有适合RHIC数据的增强传输参数$\hat q$。对于大型强子对撞机,这两种情况导致了对强子核修正因子的非常不同的预测。此外,喷注重建允许对负责喷注淬火的机制进行更具体的测试。我们计算了喷流内部的部分子分布,发现两种情况下的不同结果。

英文摘要:

The observed suppression of high-$p_\perp$ hadrons allows different explanations. We discuss two possible scenarios: In scenario 1, parton energy loss from scattering in the hot medium is complemented by final state interactions in the resonance matter. Scenario 2 has an enhanced transport parameter $\hat q$ which is fitted to RHIC data. For LHC, the two scenarios lead to very different predictions for the nuclear modification factor of hadrons. In addition, jet reconstruction allows more specific tests of the mechanisms responsible for jet quenching. We calculate the distribution of partons inside a jet and find different results for the two scenarios.

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。

↑