We calculate the proton lifetime and discuss topological defects in a wide class of non-
supersymmetric (non-SUSY) SO (10) and E (6) grand unified theories (GUTs), broken via left …

We implement type-II seesaw dominance for neutrino mass and baryogenesis through
heavy scalar triplet leptogenesis in a class of minimal non-supersymmetric SO (10) models …

We present a minimal non-supersymmetric SO (10) GUT breaking directly to the Standard
Model gauge group. Precise gauge coupling unification is achieved due to the presence of …

We investigate the properties of a Bose gas with a conserved charge as a dark matter
candidate, taking into account the restrictions imposed by relic abundance, direct and …

Very recently novel implementation of type‐II seesaw mechanism for neutrino mass has
been proposed in SU (5) grand unified theory with a number of desirable new physical …

We have studied a flavor symmetry-based extended left–right symmetric model (LRSM) with
a dominant type-II seesaw mechanism and have explored the associated neutrino …

A new physics scenario to explain PeV neutrinos observed in the IceCube experiment is
introduced, with dark matter and dark energy considered. A slowly decaying very heavy …

We have studied a flavor symmetry-based extended left-right symmetric model (LRSM) with
a dominant type-II seesaw mechanism and have explored the associated neutrino …

This chapter is devoted to indirect searches of dark matter using neutrino telescopes.
Different types of dark matter candidates and targets are considered. First, the canonical …

Supersymmetric (SUSY) grand unified theories (GUTs) appear to be best motivated for
understading strong, weak and electromagnetic interactions of nature. We briefly review …