Thermally modified sterile neutrino portal dark matter and gravitational waves from phase transition: the freeze-in case

A bstract We consider the thermal effects into the evaluation of the dark matter production process. With the assistance of the right handed neutrinos, the freeze-in massive particle dark matter production history can be modified by the two-step phase transitions. The kinematic of decay/inverse deca...

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Bibliographic Details
Published in:The journal of high energy physics 2018-12, Vol.2018 (12), p.1-29, Article 6
Main Authors: Bian, Ligong, Tang, Yi-Lei
Format: Article
Language:English
Subjects:
Beyond Standard Model
Classical and Quantum Gravitation
Cosmology of Theories beyond the SM
Dark matter
Decay
Elementary Particles
Gravitation
Gravitational waves
High energy physics
Neutrinos
Phase transitions
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scalars
String Theory
Temperature effects
Thermal Field Theory
Universe
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Summary:A bstract We consider the thermal effects into the evaluation of the dark matter production process. With the assistance of the right handed neutrinos, the freeze-in massive particle dark matter production history can be modified by the two-step phase transitions. The kinematic of decay/inverse decay or annihilation processes can be affected by the finite temperature effects as the Universe cools down. The history of the symmetry respected by the model can be revealed by the DM relic abundance evolution processes. The strong first order electroweak phase transition generated gravitational waves can be probed. The number of extra scalars for the Hierarchy problem can be probed through the Higgs off-shell searches at the LHC.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP12(2018)006