T Violation in Four Flavour Neutrino Oscillation in Planck Scale

Abstract

We study the Planck scale effects in the four flavour neutrino sector on the asymmetry between T-conjugate oscillation probabilities. Δ P T =P( ν α → ν β ) -P( ν β → ν α ) , for four flavor neutrino mixing. In this paper, we discuss some aspect of T violation effects in four flavor neutrino oscillation above the GUT scale.