Speaker
Swapnil Dutta
Description
In this talk, we look at some cosmological constraints on majoron dark matter in the singlet Majoron model. We consider two scenarios: pre-inflationary and post inflationary spontaneous lepton number symmetry breaking, while simultaneously demanding thermal leptogenesis to happen, and neutrino masses being generated by the type I seesaw mechanism. We derive the constraints and future prospects to probe majoron dark matter over a broad mass range. Some constraints that are particularly interesting are isocurvature constraints in pre-inflationary scenario and gravitational wave signatures in post inflationary scenario.
Author
Swapnil Dutta
Co-authors
Dr
Akshay Ghalsasi
(Harvard University, GRASP Initiative)
Arnab Dasgupta
(PITT-PACC)
Brian Thomas Batell
