Speaker
Soumya Sadhukhan
(Ramakrishna Mission Residential College (Autonomous), Vivekananda Centre for Research, Narendrapur, Kolkata, West Bengal, India-700149)
Description
We propose a dynamical scoto-seesaw mechanism using a gauged $B-L$ symmetry. Dark matter is reconciled with neutrino mass generation, in such a way that the atmospheric scale arises through the standard seesaw,
while the solar scale is scotogenic, arising radiatively from the exchange of dark sector particles. This way we explain the solar-to-atmospheric scale ratio. The TeV-scale seesaw mediator and the two dark fermions carry different $B-L$ charges. Dark matter stability follows from the residual matter parity that survives $B-L$ breaking. Besides having collider tests, the model implies sizeable charged lepton flavour violating (cLFV) phenomena, including Goldstone boson emission processes.
| Alternate track | 03. Beyond the Standard Model |
|---|---|
| I read the instructions above | Yes |
Authors
Prof.
Jose Valle
Soumya Sadhukhan
(Ramakrishna Mission Residential College (Autonomous), Vivekananda Centre for Research, Narendrapur, Kolkata, West Bengal, India-700149)
