Re-derived overclosure bound for the inert doublet model
A bstract We apply a formalism accounting for thermal effects (such as modified Sommerfeld 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 ∼...
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Veröffentlicht in: | The journal of high energy physics 2017-08, Vol.2017 (8), p.1-28, Article 47 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A
bstract
We apply a formalism accounting for thermal effects (such as modified Sommerfeld 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/
10
4
is considered, stressing the importance and less-understood nature of late annihilation stages. Even though only weak interactions 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. |
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ISSN: | 1029-8479 1029-8479 |
DOI: | 10.1007/JHEP08(2017)047 |