10-15 January 2021
Weizmann Institute of Science
Asia/Jerusalem timezone
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Non-equilibrium attractor in high-temperature QCD plasmas

10 Jan 2021, 19:45
1h 30m
Patio (vDLCC)

Patio

vDLCC

bullet talk (poster) The initial stages of heavy-ion collisions Poster

Speaker

Dekrayat Almaalol

Description

We establish the existence of a far-from-equilibrium attractor in weakly-coupled gauge theory undergoing one-dimensional Bjorken expansion. We demonstrate that the resulting far-from-equilibrium evolution is insensitive to certain features of the initial condition, including both the initial momentum-space anisotropy and initial occupancy. We find that this insensitivity extends beyond the energy-momentum tensor to the detailed form of the one-particle distribution function. Based on our results, we assess different procedures for reconstructing the full one-particle distribution function from the energy-momentum tensor along the attractor and discuss implications for the freeze-out procedure used in the phenomenological analysis of ultra-relativistic nuclear collisions.

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