Speaker
Mr
Sumit Biswas
(Student)
Description
We explore a left–right symmetric model in which both neutrino masses and dark matter stability have a common origin. The dark matter is identified as a pseudo-Nambu–Goldstone boson (pNGB). Its scattering with nucleons is naturally suppressed. At the same time, neutrinos here are pseudo-Dirac particles with Dirac masses generated at the two-loop level. Small Majorana mass terms arise from Planck-scale effects, leading to tiny active–sterile mass splittings. The framework simultaneously provides a parity solution to the strong CP problem without an axion and predicts an interesting connection between the dark-matter lifetime and the neutrino mass-splitting.
Authors
Anil Thapa
(Colorado State University)
Mr
Sumit Biswas
(Student)
Vishnu Padmanabhan Kovilakam
(Institut für Theoretische Physik, Universität Münster)
