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

Author(s):Show less -

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

• Document type: Journal article
• Source: PHYSICAL REVIEW C; v. 109, n. 6, p. 23-pg., 2023-06-06.

Abstract

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- p T 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 q ". 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. (AU)

• FAPESP's process: 16/24029-6 - Investigating the strong nuclear interactions under extreme conditions
• Grantee: Matthew William Luzum
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 18/24720-6 - Exploring the QCD phase diagram
• Grantee: Frédérique Marie Brigitte Sylvie Grassi
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 17/05685-2 - Hadronic physics in high energy nuclear collisions
• Grantee: Jun Takahashi
• Support Opportunities: Special Projects