Gravitational waves and black holes from the phase transition in models of dynamical symmetry breaking

Document detail

ID

oai:arXiv.org:2409.04545

Topic

High Energy Physics - Phenomenolog... Astrophysics - Cosmology and Nonga...

Author

Arteaga, Martín Ghoshal, Anish Strumia, Alessandro

Year

2024

listing date

10/2/2024

Keywords

extra dm particle gravitational waves

Metrics

Abstract

Theories of dynamical electroweak symmetry breaking predict a strong first order cosmological phase transition: we compute the resulting signals, primordial black holes and gravitational waves.

These theories employ one SM-neutral scalar, plus some extra model-dependent particle to get the desired quantum potential out of classical scale invariance.

We consider models where the extra particle is a scalar singlet, or vectors of an extended U(1) or SU(2) gauge sector.

In models where the extra particle is stable, it provides a particle Dark Matter candidate with freeze-out abundance that tends to dominate over primordial black holes.

These can instead be DM in models without a particle DM candidate.

Gravitational waves arise at a level observable in future searches, even in regions where DM cannot be directly tested.

;Comment: 23 pages.

v2: references added, gravitational waves frequency corrected.

Webinar presentation: https://youtu.be/36hLkgREOrA

Arteaga, Martín,Ghoshal, Anish,Strumia, Alessandro, 2024, Gravitational waves and black holes from the phase transition in models of dynamical symmetry breaking