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arXiv 2401.04201hep-phnucl-exnucl-th
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通过 JETSCAPE 对强子和喷注数据的贝叶斯推断分析测量喷注淬火

Measuring jet quenching with a Bayesian inference analysis of hadron and jet data by JETSCAPE

R. Ehlers, A. Angerami, R. Arora, S. A. Bass, S. Cao, Y. Chen, L. Du, H. Elfner, W. Fan, R. J. Fries, C. Gale, Y. He, U. Heinz, B. V. Jacak, P. M. Jacobs, S. Je… 展开作者

R. Ehlers, A. Angerami, R. Arora, S. A. Bass, S. Cao, Y. Chen, L. Du, H. Elfner, W. Fan, R. J. Fries, C. Gale, Y. He, U. Heinz, B. V. Jacak, P. M. Jacobs, S. Jeon, Y. Ji, L. Kasper, M. Kordell, A. Kumar, R. Kunnawalkam-Elayavalli, J. Latessa, S. Lee, Y. -J. Lee, D. Liyanage, M. Luzum, S. Mak, A. Majumder, A. Mankolli, C. Martin, H. Mehryar, T. Mengel, J. Mulligan, C. Nattrass, J. -F. Paquet, C. Parker, J. H. Putschke, H. Roch, G. Roland, B. Schenke, L. Schwiebert, A. Sengupta, C. Shen, C. Sirimanna, D. Soeder, R. A. Soltz, I. Soudi, M. Strickland, Y. Tachibana, J. Velkovska, G. Vujanovic, X. -N. Wang, W. Zhao

AI总结:

JETSCAPE 合作组首次利用贝叶斯推断结合 RHIC 和 LHC 的强子与喷注数据,研究了 QGP 喷注输运参数 $\hat{q}$,发现加入子结构数据能改善约束且不产生张力,为喷注淬火机制提供了新见解。

摘要:

JETSCAPE 合作组报告了首次利用贝叶斯推断对 QGP 喷注输运参数 $\hat{q}$ 进行的多信使研究,结合了来自 RHIC 和 LHC 的所有可用强子与喷注包容性产额及喷注子结构数据。理论模型采用依赖于虚度的介质内部分能量损失,并耦合了 QGP 演化的详细动力学模型。在对包容性强子数据的不同运动学截断约束 $\hat{q}$ 时观察到了张力。结果表明,加入子结构数据改善了对 $\hat{q}$ 的约束,且未与包容性观测量引起的约束产生张力。这些研究为物质中喷注相互作用机制提供了新见解,并指明了该领域全面理解喷注淬火作为 QGP 探针的下一步方向。

英文摘要:

The JETSCAPE Collaboration reports the first multi-messenger study of the QGP jet transport parameter $\hat{q}$ using Bayesian inference, incorporating all available hadron and jet inclusive yield and jet substructure data from RHIC and the LHC. The theoretical model utilizes virtuality-dependent in-medium partonic energy loss coupled to a detailed dynamical model of QGP evolution. Tension is observed when constraining $\hat{q}$ for different kinematic cuts of the inclusive hadron data. The addition of substructure data is shown to improve the constraint on $\hat{q}$, without inducing tension with the constraint due to inclusive observables. These studies provide new insight into the mechanisms of jet interactions in matter, and point to next steps in the field for comprehensive understanding of jet quenching as a probe of the QGP.

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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