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Title: Hydrodynamic elliptic and triangular flow in Pb–Pb collisions at s NN = 2.76 A TeV

Journal Article · · Physics Letters. B
 [1];  [1];  [1]
  1. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics

It is shown that a simultaneous comparison of both elliptic and triangular flow from (2+1)-dimensional viscous fluid dynamics with recent measurements in Pb+Pb collisions at the Large Hadron Collider (LHC) favors a small specific shear viscosity (η/s)QGP ≈ 1/(4π) for the quark-gluon plasma. By using this viscosity value, the relative magnitude of the elliptic and triangular flow is well described with Monte-Carlo Glauber (MC-Glauber) initial conditions while Monte-Carlo Kharzeev-Levin-Nardi (MC-KLN) initial conditions require twice as large viscosity to reproduce the elliptic flow and then underpredict triangular flow by about 30%.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
DOE Contract Number:
AC02-05CH11231; SC0004286; SC0004104
OSTI ID:
1425439
Journal Information:
Physics Letters. B, Vol. 707, Issue 1; ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

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