改进研究强子和包容性射流抑制的多级方法的贝叶斯校准的新指标

IF 3.2 2区物理与天体物理 Q2 PHYSICS, NUCLEAR

Physical Review C Pub Date : 2024-06-06 DOI:10.1103/physrevc.109.064903

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

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引用次数: 0

摘要

我们在一种多阶段方法中研究了与夸克胶子等离子体（QGP）之间的部分子能量-动量交换，这种多阶段方法由高虚拟性的中间多克希泽-格里波夫-利帕托夫-阿尔塔雷利-帕里斯演化和低虚拟性的（线性化）玻尔兹曼输运形式主义组成。然后利用贝叶斯模型与数据比较法，将这种多级模拟与高pT带电强子、D介子和包容性射流核修正因子进行比较校准，从而提取出与虚拟性有关的横动量展宽传输系数q̂。为了促进这项工作，我们开发了一种验证贝叶斯工作流程的定量指标，用于分析各种模型参数对各个观测值的敏感性。这一新指标在改进贝叶斯模型模拟方面的有用性表明，它对未来的此类分析大有裨益。美国物理学会出版 2024

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New metric improving Bayesian calibration of a multistage approach studying hadron and inclusive jet suppression

We study parton energy-momentum exchange with the quark gluon plasma (QGP) within a multistage approach composed of in-medium Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution at high virtuality, and (linearized) Boltzmann transport formalism at lower virtuality. This multistage simulation is then calibrated in comparison with high-pT charged hadrons, D mesons, and the inclusive jet nuclear modification factors, using Bayesian model-to-data comparison, to extract the virtuality-dependent transverse momentum broadening transport coefficient q̂. To facilitate this undertaking, we develop a quantitative metric for validating the Bayesian workflow, which is used to analyze the sensitivity of various model parameters to individual observables. The usefulness of this new metric in improving Bayesian model emulation is shown to be highly beneficial for future such analyses. Published by the American Physical Society 2024

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来源期刊

Physical Review C PHYSICS, NUCLEAR-

CiteScore

5.80

自引率

35.50%

发文量

863

期刊介绍： Physical Review C (PRC) is a leading journal in theoretical and experimental nuclear physics, publishing more than two-thirds of the research literature in the field. PRC covers experimental and theoretical results in all aspects of nuclear physics, including: Nucleon-nucleon interaction, few-body systems Nuclear structure Nuclear reactions Relativistic nuclear collisions Hadronic physics and QCD Electroweak interaction, symmetries Nuclear astrophysics