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Relativistic freeze-in

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Nov 2019Embargo end date: 01 Aug 2019 Finland English Publisher:Elsevier BVJournal:Physics Letters B, volume 798, page 134,961 (issn: 0370-2693, Copyright policy )Funded by:NSERC | unidentified
Authors: Lebedev, Oleg; Toma, Takashi;

doi: 10.1016/j.physletb.2019.134961 , 10.48550/arxiv.1908.05491

arXiv: 1908.05491

handle: 10138/307515

Relativistic freeze-in

Abstract

We study production of scalar dark matter via the freeze--in mechanism in the relativistic regime, focussing on the simplest Higgs portal model. We derive the corresponding relativistic reaction rates based on the Bose--Einstein statistics taking into account the thermal mass effects as well as the change in the Higgs degrees of freedom at the electroweak phase transition. The consequent constraints on the Higgs portal coupling are obtained.

10+1 pages, 2 figures

Country
Finland
Related Organizations
Keywords

Physical sciences, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Physics, QC1-999, FOS: Physical sciences

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    popularity
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
53
Top 1%
Top 10%
Top 10%
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