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High Energy Physics - Phenomenology

arXiv:1805.06011 (hep-ph)
[Submitted on 15 May 2018 (v1), last revised 4 Aug 2018 (this version, v2)]

Title:Dark Glueballs and their Ultralight Axions

Authors:James Halverson, Brent D. Nelson, Fabian Ruehle, Gustavo Salinas
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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 electric dipole moments constrain mixing with the QCD axion.
Comments: 8 pages, 2 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Cite as: arXiv:1805.06011 [hep-ph]
  (or arXiv:1805.06011v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1805.06011
Journal reference: Phys. Rev. D 98, 043502 (2018)
Related DOI: https://doi.org/10.1103/PhysRevD.98.043502

Submission history

From: Gustavo Salinas [view email]
[v1] Tue, 15 May 2018 19:45:12 UTC (114 KB)
[v2] Sat, 4 Aug 2018 12:59:19 UTC (115 KB)
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