Relativistic freeze-in
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 cha...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-11-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319306835 |
| id |
doaj-73a985f7d58c4667b235b6369d09ce40 |
|---|---|
| record_format |
Article |
| spelling |
doaj-73a985f7d58c4667b235b6369d09ce402020-11-25T02:43:28ZengElsevierPhysics Letters B0370-26932019-11-01798Relativistic freeze-inOleg Lebedev0Takashi Toma1Department of Physics, University of Helsinki, Gustaf Hällströmin katu 2a, Helsinki, FinlandDepartment of Physics, McGill University, 3600 Rue University, Montréal, Québec H3A 2T8, Canada; Corresponding author.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.http://www.sciencedirect.com/science/article/pii/S0370269319306835 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Oleg Lebedev Takashi Toma |
| spellingShingle |
Oleg Lebedev Takashi Toma Relativistic freeze-in Physics Letters B |
| author_facet |
Oleg Lebedev Takashi Toma |
| author_sort |
Oleg Lebedev |
| title |
Relativistic freeze-in |
| title_short |
Relativistic freeze-in |
| title_full |
Relativistic freeze-in |
| title_fullStr |
Relativistic freeze-in |
| title_full_unstemmed |
Relativistic freeze-in |
| title_sort |
relativistic freeze-in |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2019-11-01 |
| 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. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269319306835 |
| work_keys_str_mv |
AT oleglebedev relativisticfreezein AT takashitoma relativisticfreezein |
| _version_ |
1724769058581118976 |