Preprint

PUBDB-2022-03926

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. (Corresponding author)DESY*

2022

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Please use a persistent id in citations: doi:10.3204/PUBDB-2022-03926

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 freezeout abundance by several orders of magnitude. We discuss multiple qualitatively different 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: 9 pages, 7 figures

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2022

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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 Puetter, L. ; Ruderman, J. T.Extern* ; Salvioni, E. ; Shakya, B.DESY*
Bouncing dark matter
Physical review / D 109(2), 023032 (2024) [10.1103/PhysRevD.109.023032]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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