Charged-Current Disappearance Measurements in the NuMI Off-Axis Beam

TL;DR

This paper evaluates the potential of combining charged-current u_{} disappearance measurements from MINOS and an off-axis beam, finding limited improvement in precision for m^2 estimation.

Contribution

It analyzes the combined sensitivity of MINOS and off-axis measurements for u_{} disappearance, highlighting the limited benefit of their combination.

Findings

Off-axis measurement error on m^2 is a few percent.

Combining MINOS with off-axis data yields minimal improvement.

Off-axis measurement alone provides significant m^2 precision.

Abstract

This article studies the potential of combining charged-current disappearance measurements of \nu_{\mu} to \nu_{\tau} from MINOS and an off-axis beam. I find that the error on \Delta m^2 from a 100 kt-yr off-axis measurement is a few percent of itself. Further, I find little improvement to an off-axis measurement by combining it with MINOS.