Leading-order anisotropic hydrodynamics for central collisions

Nopoush, Mohammad; Strickland, Michael; Ryblewski, Radoslaw; Bazow, Dennis; Heinz, Ulrich; Martinez, Mauricio

doi:10.1103/PhysRevC.92.044912

Title: Leading-order anisotropic hydrodynamics for central collisions

Journal Article · Tue Oct 27 00:00:00 EDT 2015 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.92.044912· OSTI ID:1604529

Nopoush, Mohammad ^[1]; Strickland, Michael ^[1]; Ryblewski, Radoslaw ^[2]; Bazow, Dennis ^[3];

^[3]; Martinez, Mauricio ^[3]

Kent State Univ., Kent, OH (United States)
Polish Academy of Sciences, Krakow (Poland)
The Ohio State Univ., Columbus, OH (United States)

In this work, we use leading-order anisotropic hydrodynamics to study an azimuthally symmetric boost-invariant quark-gluon plasma. We impose a realistic lattice-based equation of state and perform self-consistent anisotropic freeze-out to hadronic degrees of freedom. We then compare our results for the full spatiotemporal evolution of the quark-gluon plasma and its subsequent freeze-out to results obtained using 1+1D Israel-Stewart second-order viscous hydrodynamics. We find that for small shear viscosities, 4πη/s ~1, the two methods agree well for nucleus-nucleus collisions; however, for large-shear-viscosity-to-entropy-density ratios or proton-nucleus collisions we find important corrections to the Israel-Stewart results for the final particle spectra and the total number of charged particles. Finally, we demonstrate that the total number of charged particles produced is a monotonically increasing function of 4πη/s in Israel-Stewart viscous hydrodynamics, whereas in anisotropic hydrodynamics it has a maximum at 4πη/s ~10. For all 4πη/s > 0, we find that for Pb-Pb collisions Israel-Stewart viscous hydrodynamics predicts more dissipative particle production than anisotropic hydrodynamics.

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Research Organization:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Polish National Science Centre (NCN)

Grant/Contract Number:: SC0004286; SC0013470; AC02-05CH11231; SC0004104; DEC-2012/07/D/ST2/02125; AC0205CH11231

OSTI ID:: 1604529

Alternate ID(s):: OSTI ID: 1224375

Journal Information:: Physical Review C, Nuclear Physics, Vol. 92, Issue 4; ISSN 0556-2813

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 35 works

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