3 papers
hep-ph2025
Freeze-in at Low Reheating and Direct Detection of Fermion Dark Matter
Amir Amiri, Bastian Diaz Saez, Kilian Möhling
We investigate a low-reheating-temperature freeze-in scenario within a minimal model of fermionic dark matter interacting through a pseudoscalar mediator. In this setup, dark matte…
hep-ph2025
Freezing-in the Pure Dark Axion Portal
Paola Arias, Bastián DÃaz Sáez, Joerg Jaeckel
A symmetry under which "dark'' and "visible'' fields transform differently can further seclude already dark particles. In a dark sector consisting of an axion-like particle a…
hep-ph2024
An example of a bouncing dark matter -- EPS-HEP2023
Bastián DÃaz Sáez
Thermal dark matter, which, after chemical decoupling from the Standard Model thermal plasma rises its yield before it freezes-out, is a new feature of thermal DM scenarios dubbed…