Preprint

PUBDB-2024-01878

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png More axion stars from strings

Gorghetto, M. (Corresponding author)DESY* ; Hardy, E. ; Villadoro, G.

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-01878

Report No.: DESY-24-075; arXiv:2405.19389

Abstract: We show that if dark matter consists of QCD axions in the post-inflationary scenario more than ten percent of it efficiently collapses into Bose stars at matter-radiation equality. Such a result is mostly independent of the present uncertainties on the axion mass. This large population of solitons, with asteroid masses and Earth-Moon distance sizes, might plausibly survive until today, with potentially interesting implications for phenomenology and experimental searches.

Keyword(s): Axions and ALPs ; Early Universe Particle Physics ; Particle Nature of Dark Matter

Note: 23 pages + appendices

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe (390833306) (390833306)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Gorghetto, M. (Corresponding author)DESY* ; Hardy, E. ; Villadoro, G.
More axion stars from strings
Journal of high energy physics 2024(8), 126 (2024) [10.1007/JHEP08(2024)126]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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