Speaker
Basabendu Barman
Description
We examine the impact of a faster expanding Universe on the phenomenology of scalar dark matter (DM) associated with $SU(2)_L$ multiplets. Earlier works with radiation dominated Universe have reported the presence of desert region for both inert $SU(2)_L$ doublet and triplet DM candidates where the DM is under abundant. We find that the existence of a faster expanding component before BBN can revive a major part of the desert parameter space consistent with relic density requirements and other direct and indirect search bounds. We also review the possible collider search prospects of the newly obtained parameter space and show that such region can be probed at the future colliders with improved sensitivity via a stable charged track.
Authors
Basabendu Barman
Mr
purusottam ghosh
Prof.
FARINALDO queiroz
(International Institute of Physics -Natal)
Abhijit Kumar Saha
(IIT Guwahati)
