Journal Article

PUBDB-2024-04951

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Bouncing dark matter

Puetter, L. ; Ruderman, J. T.Extern* ; Salvioni, E. ; Shakya, B.DESY*

2024
American Physical Society Ridge, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevD.109.023032  doi:10.3204/PUBDB-2024-04951

Report No.: DESY-22-125; arXiv:2208.08453

Abstract: We present a novel mechanism for thermal dark matter production, characterized by a “bounce”: the dark matter equilibrium distribution transitions from the canonical exponentially falling abundance to an exponentially rising one, resulting in an enhancement of the freeze-out abundance by many orders of magnitude. We discuss several realizations of bouncing dark matter. The bounce allows the present-day dark matter annihilation cross section to be significantly larger than the canonical thermal target, improving the prospects for indirect detection signals.

Keyword(s): dark matter: production ; dark matter: annihilation ; cross section: annihilation ; thermal ; bounce ; freeze-out ; enhancement

Note: Phys. Rev. D 109, 023032 (2024). 9 pages, 7 figures; v2: minor changes and references added, matches published version

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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 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:
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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Puetter, L. ; Ruderman, J. T.Extern* ; Salvioni, E. ; Shakya, B. (Corresponding author)DESY*
Bouncing Dark Matter
[10.3204/PUBDB-2022-03926]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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