期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP08(2017)047
关键词
Cosmology of Theories beyond the SM; Thermal Field Theory; Effective Field Theories; Resummation
资金
- Swiss National Science Foundation (SNF) [200020-168988]
- Swiss National Science Foundation (SNF) [200020_168988] Funding Source: Swiss National Science Foundation (SNF)
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 similar to 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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