Urjit A. Yajnik

Gauged B - L symmetry and baryogenesis via leptogenesis at TeV scale

It is shown that the requirement of preservation of baryon asymmetry does not rule out a scale for leptogenesis as low as

Tunneling decay of false vortices

10

BLACK HOLE AREA QUANTIZATION

TeV. The conclusions are compatible with see-saw mechanism if, for example, the pivot mass scale for neutrinos is

Stability of false vacuum in supersymmetric theories with cosmic strings

\ensuremath{\approx}{10}^{\ensuremath{-}2}

Quantum mechanical spectra of charged black holes

that of the charged leptons. We explore the parameter space

Graceful exit via monopoles in a theory with O'Raifeartaigh type supersymmetry breaking

{\stackrel{\texttildelow{}}{m}}_{1}

Spontaneously broken parity and consistent cosmology with transitory domain walls

-

Transient domain walls and lepton asymmetry in the left-right symmetric model

{M}_{1}

Battle of the bulge: Decay of the thin, false cosmic string

of relevant light and heavy neutrino masses by solving Boltzmann equations. A viable scenario for obtaining baryogenesis in this way is presented in the context of gauged

PeV scale Left-Right symmetry and baryon asymmetry of the Universe

B\ensuremath{-}L