Published November 2019
| Version v1
Journal article
Relativistic freeze-in
Creators
- 1. Department of Physics, University of Helsinki, Gustaf Hällströmin katu 2a, Helsinki (Finland)
- 2. Department of Physics, McGill University, 3600 Rue University, Montréal, Québec H3A 2T8 (Canada)
Description
We study production of scalar dark matter via the freeze-in mechanism in the relativistic regime, focusing 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.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2019.134961Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2019.134961;
- PII
- S0370269319306835;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 798
- Journal Page Range
- vp.
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 55011459
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- DEGREES OF FREEDOM; HIGGS BOSONS; HIGGS MODEL; NONLUMINOUS MATTER; PHASE TRANSFORMATIONS; REACTION KINETICS; RELATIVISTIC RANGE; SCALARS; THERMAL MASS
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; KINETICS; MASS; MATHEMATICAL MODELS; MATTER; PARTICLE MODELS
Optional Information
- Copyright
- Copyright (c) 2019 The Author(s). Published by Elsevier B.V.