2 papers
hep-ph2024
Higgs Portal Dark Matter Freeze-in at Stronger Coupling: Observational Benchmarks
Giorgio Arcadi, Francesco Costa, Andreas Goudelis +1
We study freeze-in production of Higgs portal dark matter (DM) at temperatures far below the dark matter mass. The temperature of the Standard Model (SM) thermal bath may have neve…
hep-ph2024
Temperature evolution in the Early Universe and freeze-in at stronger coupling
Catarina Cosme, Francesco Costa, Oleg Lebedev
Dark matter freeze-in at stronger coupling is operative when the Standard Model (SM) bath temperature never exceeds the dark matter mass. An attractive feature of this scenario is…