Exploring New Physics from nu_tau events in OPERA

Abstract

We analyze in details the impact of the $10$ ${\nu }_{\tau }$ events seen in the OPERA experiment in constraining the Non Standard Interaction parameter ${\epsilon }_{\mu \tau }$ affecting neutrino propagation in matter and the allowed parameter space of models with one sterile neutrino of the $3+1$ type.

Comments: 11 pages, 9 figures, paper accepted for publication in Physics Letters B