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Dark glueballs and their ultralight axions

Abstract:

Dark gauge sectors and axions are well-motivated in string theory. We demonstrate that if a confining gauge sector gives rise to dark glueballs that are a fraction of the dark matter, and the associated axion has a decay constant near the string scale, then this axion is ultralight and naturally realizes the fuzzy dark matter scenario with a modest tuning of a temperature ratio. Astrophysical observations constrain the size of the glueball component relative to the axionic component, while el...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1103/PhysRevD.98.043502

Authors


Halverson, J More by this author
Nelson, BD More by this author
Salinas, G More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
ORCID:
0000-0002-8409-9823
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review D Journal website
Volume:
98
Pages:
043502
Publication date:
2018-08-02
Acceptance date:
2018-08-02
DOI:
EISSN:
2470-0029
ISSN:
2470-0010
Pubs id:
pubs:892207
URN:
uri:82fff5dc-6597-4f28-993d-c8c1ce2ea8b1
UUID:
uuid:82fff5dc-6597-4f28-993d-c8c1ce2ea8b1
Local pid:
pubs:892207

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