Article ID Journal Published Year Pages File Type
1823309 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2013 8 Pages PDF
Abstract

This paper outlines a method for improving the precision of atmospheric neutrino oscillation measurements. One experimental signature for these oscillations is an observed deficit in the rate of νμνμ charged-current interactions with an oscillatory dependence on Lν/EνLν/Eν, where LνLν is the neutrino propagation distance and EνEν is the neutrino energy. For contained-vertex atmospheric neutrino interactions, the Lν/EνLν/Eν resolution varies significantly from event to event. The precision of the oscillation measurement can be improved by incorporating information on Lν/EνLν/Eν resolution into the oscillation analysis. In the analysis presented here, a Bayesian technique is used to estimate the Lν/EνLν/Eν resolution of observed atmospheric neutrinos on an event-by-event basis. By separating the events into bins of Lν/EνLν/Eν resolution in the oscillation analysis, a significant improvement in oscillation sensitivity can be achieved.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Instrumentation
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