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#
Transport Meeting

Venue: via Zoom

Time: Thursday, October 21, 2021, 2:15 pm

Contact: hees@itp.uni-frankfurt.de

# Development of transverse flow in small and
large collision systems in conformal kinetic theory

## Clemens Werthmann (University Bielefeld)

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 cooling due to
longitudinal expansion and development of transverse flow from very small
to very large opacities. Our results demonstrate that for large opacities,
the system follows a Bjorken flow scaling law up to intermediate times. In
comparing transverse flow, suprisingly, 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
pre-equilibrium phase.

The talk will be live-streamed (but not recorded) via Zoom under

https://uni-frankfurt.zoom.us/j/2848286010?pwd=VmtCY1RCc1hpVStKd0RibFBpc1IzZz09

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