3 papers
hep-ph2026
Inflation in Extra-Dimensions with one or two branes
Nicolás Bernal, Catarina Cosme, Andrea Donini +1
In this paper, we study two inflationary models, namely, monomial inflation and the simplest -attractor inflation, within extra-dimensional frameworks. We consider three extra-…
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…
hep-ph2024
Freeze-in at stronger coupling
Catarina Cosme, Francesco Costa, Oleg Lebedev
Predictivity of many non-thermal dark matter (DM) models is marred by the gravitational production background. This problem is ameliorated in models with lower reheating temperatur…