Development of transverse flow at small and large opacities in conformal kinetic theory - INSPIRE

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Development of transverse flow at small and large opacities in conformal kinetic theory

Victor E. Ambrus
(
- Frankfurt U. and
- West Timisoara U.
)
,
S. Schlichting
(
- Bielefeld U.
)
,
C. Werthmann
(
- Bielefeld U.
)

Sep 7, 2021

37 pages

Published in:

Phys.Rev.D 105 (2022) 1, 014031

Published: Jan 1, 2022

e-Print:

2109.03290 [hep-ph]

DOI:

10.1103/PhysRevD.105.014031 (publication)

View in:

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Abstract: (APS)

We employ an effective kinetic description, based on the Boltzmann equation in the relaxation time approximation, to study the space-time dynamics and development of transverse flow of small and large collision systems. By combining analytical insights in the small opacity limit with numerical simulations at larger opacities, we are able to describe the development of transverse flow from very small to very large opacities. Surprisingly, we find that deviations between kinetic theory and hydrodynamics persist even in the limit of very large opacities, which can be attributed to the presence of the early preequilibrium phase.

Note:

37 pages, 14 figures; changes v2: added appendix E, minor corrections; changes v3: added figure and discussion at the end of section V, minor changes to e.g. figure captions, version to appear in Phys. Rev. D

flow: transverse
opacity
kinetic
space-time
Boltzmann equation
hydrodynamics
conformal
numerical calculations

References(106)

Figures(54)

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