Re-derived overclosure bound for the inert doublet model

Biondini, Simone; Laine, Mikko Sakari (2017). Re-derived overclosure bound for the inert doublet model. Journal of High Energy Physics, 2017(8), 047. Springer 10.1007/JHEP08(2017)047

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We apply a formalism accounting for thermal effects (such as modified Sommer- feld effect; Salpeter correction; decohering scatterings; dissociation of bound states), to one of the simplest WIMP-like dark matter models, associated with an “inert” Higgs doublet. A broad temperature range T ~ M/20...M/10⁴ is considered, stressing the importance and less-understood nature of late annihilation stages. Even though only weak interac- tions play a role, we find that resummed real and virtual corrections increase the tree-level overclosure bound by 1 . . . 18%, depending on quartic couplings and mass splittings.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Biondini, Simone and Laine, Mikko Sakari

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

27 Oct 2017 15:03

Last Modified:

27 Oct 2017 15:03

Publisher DOI:

10.1007/JHEP08(2017)047

ArXiv ID:

1706.01894

BORIS DOI:

10.7892/boris.106408

URI:

https://boris.unibe.ch/id/eprint/106408

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