2nd Edition of the Workshop 'Quarkonia meet Dark Matter' (QMDM)

Gravitational waves from non-Abelian dark sectors coupled to inflation

Mar 21, 2024, 4:45 PM

25m

Auditorium (Institute for Advanced Study, Technical University of Munich)

4. Gravitational waves, astrophysical and collider phenomenology Thursday - Session 4

Speaker

Helena Kolesova (University of Stavanger)

Description

Taking axion inflation as an example, we study the evolution of a non-Abelian dark sector coupled to inflaton for different choices of the confinement scale. For confinement scales just a few orders of magnitude below the Planck scale, gravitational wave signal generated by fluctuations in the thermal plasma may become relevant. Another possible source of gravitational waves is the confinement phase transition; however, this signal might be strongly suppressed due to the presence of an early matter-dominated era. This talk is based on collaboration with Simona Procacci and Mikko Laine (https://arxiv.org/pdf/2303.17973 and https://arxiv.org/pdf/2311.03718).

Presentation materials

Munich_Kolesova.pdf