5 papers
Radiative Seesaw Model with Baryon Number Violation and Upper Limit on Neutron-anti-Neutron Transition Time
Rabindra N. Mohapatra, Nobuchika Okada
The minimal scotogenic model where small neutrino masses arise via radiative seesaw, is known to provide a unified framework for neutrino mass and origin of matter via leptogenesis…
Avoiding Blindness in Baryon Number Violating Processes: Free-Beam and Intranuclear Paths to Neutron-Antineutron Transitions
Joshua L. Barrow, Peter Fierlinger, Yuri Kamyshkov +4
Experimental searches for neutron--antineutron () transitions can be considered via two approaches: conversion in free-neutron beams and intranuclear transfor…
Matter-Dark Matter Coincidence and Mirror World
Rabindra N. Mohapatra, Nobuchika Okada
Why matter and dark matter contents of the universe are of the same order of magnitude, is one of the puzzles of modern cosmology. At the face of it, this would seem to point towar…
Accidental Peccei-Quinn Symmetry From Gauged U(1) and a High Quality Axion
K. S. Babu, Bhaskar Dutta, Rabindra N. Mohapatra
We construct explicit models that solve the axion quality problem originating from quantum gravitational effects. The general strategy we employ is to supplement the Standard Model…
Hybrid SO(10) Axion Model Without Quality Problem
K. S. Babu, Bhaskar Dutta, Rabindra N. Mohapatra
Invisible axion models that solve the strong CP problem via the Peccei-Quinn (PQ) mechanism typically have a quality problem that arises from quantum gravity effects which violate…