5-9 October 2020
Online
Europe/Moscow timezone
The conference is over. We would like to thank all participants for their attendance!

Cosmological baryon/lepton assymmetry in terms of Kaluza-Klein extra dimensions

8 Oct 2020, 19:15
20m
Zoom

Zoom

https://zoom.us/j/95346789951
Oral talk Gravitation and cosmology Gravitation and Cosmology

Speakers

Valery Nikulin (NRNI MEPhI) Prof. Sergey Rubin

Description

We consider a new mechanism of baryon/lepton number accumulation in the early Universe in theories with compact extra dimensions. The relaxation processes in the extra space metric lead to the establishment of symmetrical extra space configuration and take place during its formation. As a result, the initial accumulation of the charges (numbers) associated with the symmetry occurs. A variant of the mechanism is discussed, based on triplet splitting in the ground (massless) Kaluza-Klein level of a fermion field. Such splitting can occur in 2-dimensional apple-like extra space with angle excess stabilized by $f(R)$-gravity. This conceptual idea can be used to develop a model for the production of the baryon/lepton number in the early Universe.

Primary authors

Presentation Materials

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