10 papers
From WIMP to FIMP during reheating: collider vs non-collider probes for p-wave annihilation
Dipankar Pradhan, Niloy Mondal, Abhik Sarkar +4
By examining the transition from freeze-out to freeze-in dark matter (DM) production within the framework of perturbative reheating, where DM interacts with the visible sector thro…
Multi-messenger FIMP
Debasish Borah, Nayan Das, Sahabub Jahedi +1
We propose a multi-messenger frontier probe of non-thermal or freeze-in massive particle (FIMP) dark matter (DM) by considering an effective field theory (EFT) setup. Assuming lept…
Two-component Dark Matter and low scale Thermal Leptogenesis
Subhaditya Bhattacharya, Devabrat Mahanta, Niloy Mondal +1
The observable cosmos exhibits sizable baryon asymmetry, small active neutrino masses, and the presence of dark matter (DM). To address these phenomena together, we propose a two c…
Lepton collider as a window to reheating via freezing in dark matter detection. Part I
Basabendu Barman, Subhaditya Bhattacharya, Sahabub Jahedi +2
We propose a methodology to infer the reheat temperature () of the Universe from the collider signal of freezing in dark matter (DM). We demonstrate it for the mono-$γ…
The Influence of Lepton Portal on the WIMP-pFIMP framework
Jayita Lahiri, Dipankar Pradhan, Abhik Sarkar
The dynamics and detection possibility of a pseudo-FIMP (pFIMP) dark matter (DM) in the presence of a thermal DM have been studied in different contexts. The pFIMP phenomenology la…
Lepton collider as a window to reheating via freezing in dark matter detection. Part II
Basabendu Barman, Subhaditya Bhattacharya, Sahabub Jahedi +2
Dark matter (DM) genesis via Ultraviolet (UV) freeze-in embeds the seed of reheating temperature and dynamics in its relic density. Thus, discovery of such a DM candidate can possi…