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Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach

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dc.contributor.author Chattopadhyay, Chandrodoy en_US
dc.contributor.author BHALERAO, RAJEEV S. en_US
dc.contributor.author Ollitrault, Jean-Yves en_US
dc.contributor.author Pal, Subrata en_US
dc.date.accessioned 2019-09-09T11:26:40Z
dc.date.available 2019-09-09T11:26:40Z
dc.date.issued 2018-03 en_US
dc.identifier.citation Physical Review C, 97(3), 034915. en_US
dc.identifier.issn 2469-9985 en_US
dc.identifier.issn 2469-9993 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/3872
dc.identifier.uri https://doi.org/10.1103/PhysRevC.97.034915 en_US
dc.description.abstract We evaluate the effects of preequilibrium dynamics on observables in ultrarelativistic heavy-ion collisions. We simulate the initial nonequilibrium phase within a multiphase transport (AMPT) model, while the subsequent near-equilibrium evolution is modeled using (2+1)-dimensional relativistic viscous hydrodynamics. We match the two stages of evolution carefully by calculating the full energy-momentum tensor from AMPT and using it as input for the hydrodynamic evolution. We find that when the preequilibrium evolution is taken into account, final-state observables are insensitive to the switching time from AMPT to hydrodynamics. Unlike some earlier treatments of preequilibrium dynamics, we do not find the initial shear viscous tensor to be large. With a shear viscosity to entropy density ratio of 0.12, our model describes quantitatively a large set of experimental data on Pb+Pb collisions at the Large Hadron Collider over a wide range of centrality: differential anisotropic flow v n ( p T ) ( n = 2 – 6 ) , event-plane correlations, correlation between v 2 and v 3 , and cumulant ratio v 2 { 4 } / v 2 { 2 } . en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.subject Dynamics on collective flow en_US
dc.subject Hydrodynamic approach en_US
dc.subject Anisotropic flow en_US
dc.subject Hydrodynamics en_US
dc.subject 2018 en_US
dc.title Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle Physical Review C en_US
dc.publication.originofpublisher Foreign en_US


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