Documentdetail
ID kaart
oai:arXiv.org:2409.04545
Onderwerp
High Energy Physics - Phenomenolog... Astrophysics - Cosmology and Nonga...Auteur
Arteaga, Martín Ghoshal, Anish Strumia, AlessandroCategorie
wetenschappen: astrofysica
Jaar
2024
vermelding datum
02-10-2024
Trefwoorden
extra dm particle gravitational wavesBeschrijving
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
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