Joerg Jaeckel
Challenging the stability of light millicharged dark matter
Jaeckel, Joerg; Schenk, Sebastian
Authors
Sebastian Schenk
Abstract
We investigate the cosmological stability of light bosonic dark matter carrying a tiny electric charge. In the wavelike regime of high occupation numbers, annihilation into gauge bosons can be drastically enhanced by parametric resonance. The millicharged particle can either be minimally coupled to photons, or its electromagnetic interaction can be mediated via kinetic mixing with a massless hidden photon. In the case of a direct coupling, current observational constraints on the millicharge are stronger than those arising from parametric resonance. For the (theoretically preferred) case of kinetic mixing, large regions of parameter space are affected by the parametric resonance, leading at least to a fragmentation of the dark matter field, if not its outright destruction.
Citation
Jaeckel, J., & Schenk, S. (2021). Challenging the stability of light millicharged dark matter. Physical Review D, 103(10), Article 103523. https://doi.org/10.1103/physrevd.103.103523
Journal Article Type | Article |
---|---|
Acceptance Date | Apr 20, 2021 |
Online Publication Date | May 17, 2021 |
Publication Date | 2021 |
Deposit Date | Sep 14, 2021 |
Publicly Available Date | Sep 14, 2021 |
Journal | Physical Review D |
Print ISSN | 2470-0010 |
Electronic ISSN | 2470-0029 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 103 |
Issue | 10 |
Article Number | 103523 |
DOI | https://doi.org/10.1103/physrevd.103.103523 |
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Copyright Statement
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
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