Dissipative corrections to particle spectra and anisotropic flow from a saddle-point approximation to kinetic freeze out - INSPIRE

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Dissipative corrections to particle spectra and anisotropic flow from a saddle-point approximation to kinetic freeze out

Christian Lang
(
- Bielefeld U.
)
,
Nicolas Borghini
(
- Bielefeld U.
)

Dec 30, 2013

6 pages

Published in:

Eur.Phys.J.C 74 (2014) 2955

Published: Jul 17, 2014

e-Print:

1312.7763 [nucl-th]

DOI:

10.1140/epjc/s10052-014-2955-7

Report number:

BI-TP-2013-025

View in:

ADS Abstract Service

reference search11 citations

Citations per year

Abstract: (arXiv)

A significant fraction of the changes in momentum distributions induced by dissipative phenomena in the description of the fluid fireball created in ultrarelativistic heavy-ion collisions actually take place when the fluid turns into individual particles. We study these corrections in the limit of a low freeze-out temperature of the flowing medium, and we show that they mostly affect particles with a higher velocity than the fluid. For these, we derive relations between different flow harmonics, from which the functional form of the dissipative corrections could ultimately be reconstructed from experimental data.

Note:

v2 (accepted for publication): 11 pages, 3 figures

particle: spectrum
freeze-out: temperature
flow: anisotropy
heavy ion: scattering
saddle-point approximation
fluid
dissipation
momentum spectrum
velocity
fireball

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