Extracting the bulk viscosity of the quark-gluon plasma

2014/07/31 by J. -B. Rose, J. -F. Paquet, G. S. Denicol +4 · 1 citation
Physics and Astronomy · #hep-ph #nucl-th

paper · pdf · doi:10.1016/j.nuclphysa.2014.09.044

4 pages, 5 figures, proceedings of the XXIV Quark Matter conference, May 19-24 2014, Darmstadt (Germany)

arxiv created 2014/07/31 · arxiv updated 2015/06/22

Abstract

We investigate the implications of a nonzero bulk viscosity coefficient on the azimuthal momentum anisotropy of ultracentral relativistic heavy ion collisions at the Large Hadron Collider. We find that, with IP-Glasma initial conditions, a finite bulk viscosity coefficient leads to a better description of the flow harmonics in ultracentral collisions. We then extract optimal values of bulk and shear viscosity coefficients that provide the best agreement with flow harmonic coefficients data in this centrality class.

Cited by

• Impact of Initial-State Nuclear and Sub-Nucleon Structures on Ultra-Central Puzzle in Heavy Ion Collisions

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