Azimuthal anisotropies at high momentum from purely non-hydrodynamic transport

Romatschke, Paul

doi:10.1140/epjc/s10052-018-6112-6

Title: Azimuthal anisotropies at high momentum from purely non-hydrodynamic transport

Journal Article · Fri Aug 10 00:00:00 EDT 2018 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-018-6112-6· OSTI ID:1463912

Romatschke, Paul

In the limit of short mean free path, relativistic kinetic theory gives rise to hydrodynamics through a systematically improvable gradient expansion. In the present work, a systematically improvable expansion in the opposite limit of large mean free path is considered, describing the dynamics of particles which are almost, but not quite, non-interacting. This non-hydrodynamic “eremitic” expansion does not break down for large gradients, and may be useful in situations where a hydrodynamic treatment is not applicable. As applications, azimuthal anisotropies at high transverse momenta in Pb + Pb and p + Pb collisions at $$ \sqrt{s}$$ = 5.02 TeV are calculated from the first order eremitic expansion of kinetic theory in the relaxation time approximation.

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Research Organization:: Univ. of Colorado, Boulder, CO (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0017905

OSTI ID:: 1463912

Alternate ID(s):: OSTI ID: 1510001

Journal Information:: European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Vol. 78 Journal Issue: 8; ISSN 1434-6044

Publisher:: Springer Science + Business MediaCopyright Statement

Country of Publication:: Germany

Language:: English

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Cited by: 24 works

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