New Physics Effects in Long Baseline Experiments

TL;DR

This paper explores how hypothetical new physics could alter neutrino oscillation measurements in long baseline experiments like MINOS, providing an exact analytic formula for the transition probability under certain conditions.

Contribution

It derives an exact analytic formula for neutrino oscillation probabilities in the presence of new physics affecting matter interactions, applicable when elta m^2_{21} o0.

Findings

New physics can significantly modify matter effects in neutrino oscillations.

The derived formula provides a precise tool for analyzing experimental data under new physics scenarios.

Implications for interpreting results from long baseline neutrino experiments like MINOS.

Abstract

We discuss the implications of new physics, which modifies the matter effect in neutrino oscillations, to long baseline experiments, particularly the MINOS experiment. An analytic formula in the presence of such a new physics interaction is derived for $P(\nu_\mu\to\nu_e)$, which is exact in the limit $\Delta m^2_{21}\to0$.