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Axion and ALP miniclusters and consequences for cosmology

Schwetz-Mangold, Thomas ORCID iD icon

Abstract (englisch):

In this talk I review axion and axion-like particle (ALP) dark matter. I focus on the case that Peccei-Quinn symmetry breaking happens after inflation. This leads to large fluctuations in the axion DM density, with interesting phenomenological consequences. I discuss the formation of axion minicluster and show that ALP dark matter can be constrained by using the sensitivity of CMB experiments to an isocurvature component in the primordial DM density fluctuations.

Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Vortrag
Publikationsmonat/-jahr 02.2019
Sprache Englisch
Identifikator KITopen-ID: 1000091709
HGF-Programm 51.03.06 (POF III, LK 01) Theoretische Astroteilchenphysik
Veranstaltung HRI workshop on neutrinos and dark matter (2019), Allahabad, Indien, 28.02.2019
Bemerkung zur Veröffentlichung Harish-Chandra Research Institute
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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