Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV

doi:10.1016/j.nuclphysa.2017.05.037

Title: Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV

Abstract

Here, we perform a global Bayesian analysis of a modern event-by-event heavy-ion collision model and LHC data at √s = 2.76 and 5.02 TeV. After calibration, the model simultaneously describes multiplicity, transverse momentum, and flow data at both beam energies. We report new constraints on the scaling of initial-state entropy deposition and QGP transport coefficients, including a quantitative estimate of the temperature-dependent shear viscosity (η/s)( T).

Authors:

Bernhard, Jonah E. ^[1]; Moreland, J. Scott ^[1]; Bass, Steffen A. ^[1]

Duke Univ., Durham, NC (United States). Dept. of Physics

Publication Date:: 2017-09-25

Research Org.:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center

Sponsoring Org.:: USDOE

OSTI Identifier:: 1478657

Grant/Contract Number:: [FG02-05ER41367]

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Physics. A

Additional Journal Information:: [ Journal Volume: 967; Journal Issue: C]; Journal ID: ISSN 0375-9474

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; heavy-ion collisions; quark-gluon plasma; Bayesian parameter estimation; uncertainty quantification

Citation Formats


                    Bernhard, Jonah E., Moreland, J. Scott, and Bass, Steffen A. Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.nuclphysa.2017.05.037.

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                    Bernhard, Jonah E., Moreland, J. Scott, & Bass, Steffen A. Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV.  United States.  doi:10.1016/j.nuclphysa.2017.05.037.

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                    Bernhard, Jonah E., Moreland, J. Scott, and Bass, Steffen A. Mon .  
        "Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV".  United States.  doi:10.1016/j.nuclphysa.2017.05.037.  https://www.osti.gov/servlets/purl/1478657.

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@article{osti_1478657,

  title        = {Characterization of the initial state and QGP medium from a combined Bayesian analysis of LHC data at 2.76 and 5.02 TeV},

  author       = {Bernhard, Jonah E. and Moreland, J. Scott and Bass, Steffen A.},

  abstractNote = {Here, we perform a global Bayesian analysis of a modern event-by-event heavy-ion collision model and LHC data at √s = 2.76 and 5.02 TeV. After calibration, the model simultaneously describes multiplicity, transverse momentum, and flow data at both beam energies. We report new constraints on the scaling of initial-state entropy deposition and QGP transport coefficients, including a quantitative estimate of the temperature-dependent shear viscosity (η/s)(T).},

  doi          = {10.1016/j.nuclphysa.2017.05.037},

  journal      = {Nuclear Physics. A},

  number       = [C],

  volume       = [967],

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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Journal Article:

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DOI: 10.1016/j.nuclphysa.2017.05.037

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Cited by: 7 works

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Figures / Tables:

Fig. 1: Model observables sampled from the posterior distribution (lines) compared to experimental data (points with error bars). At the time of this writing, identified particle data were not available at $\sqrt{s}$ = 5.02 TeV.

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