arXiv subjects

M. Anwar Mughal

Publications and source records attributed to M. Anwar Mughal.

2 recordsLinked to original sources

arXiv2002

Neutrino spin-flip effects in active galactic nuclei

We study the effects of neutrino spin-flip in the magnetic field, B_{AGN}, of active galactic nuclei (AGN) for high-energy neutrinos (E > 10^{6} GeV) originating from AGN induced by an interplay of the violation of equivalence principle parameterized by $Δf$ and the twist in B_{AGN}. We point out that a conversion effect may exist for $Δf \sim 10^{-34} (δm^{2}/10^{-5} eV^{2})$ independent of gravity mixing angle. Observational consequences for this conversion effect are discussed.

hep-ph↗

arXiv1998

Bounds on R-parity violating SUSY Yukawa couplings from semileptonic decays of baryons

We consider tree-level corrections to hypercharge changing semileptonic decays of certain baryons induced by a minimal supersymmetric standard model with explicitly broken R-parity via $L$-violation. This study leads to a new set of constraints on the products of couplings arising from the LQd$^c$ operator of the superpotential.

hep-ph↗