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SUMMARY:New perturbative solutions for relativistic hydrodynamics and the
effect of longitudinal acceleration on spectra
DTSTART;VALUE=DATE-TIME:20180515T171000Z
DTEND;VALUE=DATE-TIME:20180515T174000Z
DTSTAMP;VALUE=DATE-TIME:20200710T032155Z
UID:indico-contribution-3004166@indico.cern.ch
DESCRIPTION:Speakers: Zefang Jiang (CCNU)\nIn this work\, we aim to invest
igate analytical solutions which take into account the longitudinal accel
eration effect of fluid dynamics for nucleus-nucleus collisions. Starting
from the equations for dissipative fluid dynamics\, a new perturbative ana
lytical solution for $1+d$ dimensional accelerating relativistic viscous h
ydrodynamics is presented.\n From this accelerating hydrodynamic theory
\, the solution not only contains the general first-order viscous construc
t\, but also includes a longitudinal acceleration parameter. The results s
how that\, with the longitudinally accelerating hydrodynamic expansion\, t
he temperature gradient becomes larger due to the acceleration effect\, me
anwhile the viscous corrections will decelerate the longitudinal hydrodyna
mic expansion and make the cooling rate smaller. Numerical results on the
transverse momentum spectra\, rapidity spectra and pseudo-rapidity spectra
in the final state\, are given for different values of the acceleration p
arameter\, shear (bulk) viscosity to entropy density ratio $\\eta/s$ ($\\z
eta/s$)\, and speed of sound $c_{s}$.\n\nhttps://indico.cern.ch/event/6564
52/contributions/3004166/
LOCATION:Palazzo del CasinĂ² First floor and third floor
URL:https://indico.cern.ch/event/656452/contributions/3004166/
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