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Revisiting Bayesian constraints on the transport coefficients of QCD

Publication ,  Journal Article
Paquet, J-F; Angerami, A; Bass, SA; Cao, S; Chen, Y; Coleman, J; Cunqueiro, L; Dai, T; Du, L; Ehlers, R; Elfner, H; Everett, D; Fan, W ...
February 13, 2020
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Multistage models based on relativistic viscous hydrodynamics have proven successful in describing hadron measurements from relativistic nuclear collisions. These measurements are sensitive to the shear and the bulk viscosities of QCD and provide a unique opportunity to constrain these transport coefficients. Bayesian analyses can be used to obtain systematic constraints on the viscosities of QCD, through methodical model-to-data comparisons. In this manuscript, we discuss recent developments in Bayesian analyses of heavy ion collision data. We highlight the essential role of closure tests in validating a Bayesian analysis before comparison with measurements. We discuss the role of the emulator that is used as proxy for the multistage theoretical model. We use an ongoing Bayesian analysis of soft hadron measurements by the JETSCAPE Collaboration as context for the discussion.

Duke Scholars

Steffen A. Bass
Author Steffen A. Bass Physics

Publication Date

February 13, 2020

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Paquet, J.-F., Angerami, A., Bass, S. A., Cao, S., Chen, Y., Coleman, J., … Yang, Z. (2020). Revisiting Bayesian constraints on the transport coefficients of QCD.
Paquet, J. -. F., A. Angerami, S. A. Bass, S. Cao, Y. Chen, J. Coleman, L. Cunqueiro, et al. “Revisiting Bayesian constraints on the transport coefficients of QCD,” February 13, 2020.
Paquet J-F, Angerami A, Bass SA, Cao S, Chen Y, Coleman J, et al. Revisiting Bayesian constraints on the transport coefficients of QCD. 2020 Feb 13;
Paquet J-F, Angerami A, Bass SA, Cao S, Chen Y, Coleman J, Cunqueiro L, Dai T, Du L, Ehlers R, Elfner H, Everett D, Fan W, Fries R, Gale C, He Y, Heffernan M, Heinz U, Jacak BV, Jacobs PM, Jeon S, Kauder K, Ke W, Khalaj E, II MK, Kumar A, Luo T, Luzum M, Majumder A, McNelis M, Mulligan J, Nattrass C, Oliinychenko D, Pablos D, Pang LG, Park C, Putschke JH, Roland G, Schenke B, Schwiebert L, Shen C, Silva A, Sirimanna C, Soltz RA, Tachibana Y, Vujanovic G, Wang X-N, Wolpert RL, Xu Y, Yang Z. Revisiting Bayesian constraints on the transport coefficients of QCD. 2020 Feb 13;

Publication Date

February 13, 2020

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences