On the wall velocity dependence - S Huber.pdf (521.56 kB)
On the wall velocity dependence of electroweak baryogenesis
journal contribution
posted on 2023-06-10, 03:13 authored by Glauber C Dorsch, Stephan HuberStephan Huber, Thomas KonstandinWe re-evaluate the status of supersonic electroweak baryogenesis using a generalized fluid Ansatz for the non-equilibrium distribution functions. Instead of truncating the expansion to first order in momentum, we allow for higher order terms as well, including up to 21 fluctuations. The collision terms are computed analytically at leading-log accuracy. We also point out inconsistencies in the standard treatments of transport in electroweak baryogenesis, arguing that one cannot do without specifying an Ansatz for the distribution function. We present the first analysis of baryogenesis using the fluid approximation to higher orders. Our results support the recent findings that baryogenesis may indeed be possible even in the presence of supersonic wall velocities.
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Publication status
- Published
File Version
- Accepted version
Journal
Journal of Cosmology and Astroparticle PhysicsISSN
1475-7516Publisher
IOP PublishingExternal DOI
Issue
8Volume
2021Page range
20-20Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2022-04-25First Open Access (FOA) Date
2022-08-12First Compliant Deposit (FCD) Date
2022-04-22Usage metrics
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