2018/11/30 by Ligong Bian, Xuewen Liu · 2 citations
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Electroweak interaction #Gravitational wave #Hot dark matter #Light dark matter #Neutrino #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Phase transition #Physics #Quantum mechanics #Scalar field dark matter #Sterile neutrino #Warm dark matter #astro-ph.CO #hep-ph
paper · pdf · doi:10.1103/physrevd.99.055003
published as Phys. Rev. D 99, 055003 (2019) · 29 pages, 16 figures, version accepted for publication in PRD
arxiv created 2019/02/20 · openalex publication_date 2019/03/08 · arxiv updated 2019/03/13 · openalex created_date 2019/03/22 · openalex updated_date 2026/08/05
We study the dynamical freeze-in production of dark matter considering the electroweak phase transition history of the Universe. The kinematical thresholds of the decay and scattering processes for dark matter production can be altered by the temperature-dependent thermal masses of particles, which might lead to an enhancement or reduction of the dark matter relic abundance. The second-stage strongly first-order electroweak phase transition (SFOEWPT) triggered by the hidden scalars can be probed at colliders and gravitational wave detectors. Two-step SFOEWPT modified late decay feebly interacting massive particle dark matter is accomplished with a Dirac neutrino mass explanation in the scotogenic model.