4 papers
Gravitational Wave Signature and the Nature of Neutrino Masses: Majorana, Dirac, or Pseudo-Dirac?
Sudip Jana, Sudip Manna, Vishnu P. K
The fermionic nature of neutrinos and the origin of their tiny masses remain unresolved issues in particle physics, intrinsically connected to lepton number symmetry-conserved for…
How Charged Can Neutrinos Be?
Sudip Jana, Michael Klasen, Vishnu P. K
We investigate how neutrinos may acquire small electric charges within the Standard Model framework while preserving electromagnetic gauge invariance. Instead of gauging the standa…
Chiral dark matter and radiative neutrino masses from gauged U(1) symmetry
K. S. Babu, Shreyashi Chakdar, Vishnu P. K
We propose a class of dark matter models based on a chiral gauge symmetry acting on a dark sector. The chiral protects the masses of the dark sector fermions, and als…
Minimal Realizations of Dirac Neutrino Mass from Generic One-loop and Two-loop Topologies at
Sudip Jana, Vishnu P. K., Shaikh Saad
We carry out a systematic investigation for the minimal Dirac neutrino mass models emerging from generic one-loop and two-loop topologies that arise from effective operator w…