https://doi.org/10.1140/epjc/s10052-014-2955-7
Regular Article - Theoretical Physics
Dissipative corrections to particle spectra and anisotropic flow from a saddle-point approximation to kinetic freeze out
Fakultät für Physik, Universität Bielefeld, Postfach 100131, 33501, Bielefeld, Germany
* e-mail: borghini@physik.uni-bielefeld.de
Received:
16
January
2014
Accepted:
1
July
2014
Published online:
17
July
2014
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.
© SIF and Springer-Verlag Berlin Heidelberg, 2014
