Impact of active-sterile neutrino mixing on physics potential of long baseline neutrino oscillation experiments

Abstract

The short baseline neutrino oscillation anomalies from reactor data, LSND, and MiniBooNE point towards the existence of one or more low energy (eV-scale) sterile neutrinos. Moreover, the various extensions of Standard Model (SM) of particle physics require heavy right handed neutrinos to accommodate observed neutrino oscillation data, predict existence of eV-scale sterile neutrino. Though these low energy sterile neutrinos are SU(2):L × U(1)Y gauge singlets, they can mix with active neutrinos and this active-sterile neutrino mixing may affect the measurements of the unknown neutrino oscillation parameters by long baseline experiment. In this regard, in this paper, we investigate the effect of active-sterile neutrino mixing on the physics potential of the long baseline experiment (NO (formula presented) A) in 3+1 oscillation scenario.