Charged particle's elliptic flow in 2+1D viscous hydrodynamics at LHC ($\sqrt{s}$= 2.76 TeV) energy in Pb+Pb collision - INSPIRE

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Charged particle's elliptic flow in 2+1D viscous hydrodynamics at LHC ( $\sqrt{s}$ = 2.76 TeV) energy in Pb+Pb collision

Victor Roy
(
- Calcutta, VECC
)
,
A.K. Chaudhuri
(
- Calcutta, VECC
)

Mar, 2011

5 pages

Published in:

Phys.Lett.B 703 (2011) 313-317

e-Print:

1103.2870 [nucl-th]

DOI:

10.1016/j.physletb.2011.08.006

View in:

ADS Abstract Service

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Abstract: (Elsevier)

In the Israel–Stewartʼs theory of second order hydrodynamics, we have simulated s=2.76 TeV Pb + Pb collisions. ALICE data for the centrality dependence of charged particles multiplicity, pT spectra in 0–5% collisions, centrality dependence of integrated and differential elliptic flow are analysed. Analysis indicate that while ALICE data on charged particles multiplicity or pT spectra do not demand any viscosity, viscosity is demanded by the elliptic flow data. From a simultaneous fit to all the data sets, viscosity to entropy ratio in sNN=2.76 TeV Pb + Pb collisions is extracted as, η/s=0.06±0.2 .

Note:

Significantly revised version. New figures are added. Accepted in Phys. Lett. B. 6 pages, 6 figures

47.75.+f
25.75.Ld
12.38.Mh
fluid
charged particle: elliptic flow
hydrodynamics: viscosity
ALICE
CERN LHC Coll
heavy ion: scattering
lead

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