Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment

Adamson, P, Andreopoulos, C, Arms, K. E., Armstrong, R, Auty, D J, Ayres, D. S., Backhouse, C, Baller, B, Barr, G, Barrett, W. L., Falk, E, Harris, P G, Hartnell, J and et al, (2008) Search for Active Neutrino Disappearance Using Neutral-Current Interactions in the MINOS Long-Baseline Experiment. Physical Review Letters, 101 (22). p. 221804. ISSN 0031-9007

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Abstract

We report the first detailed comparisons of the rates and spectra of neutral-current neutrino interactions at two widely separated locations. A depletion in the rate at the far site would indicate mixing between and a sterile particle. No anomalous depletion in the reconstructed energy spectrum is observed. Assuming oscillations occur at a single mass-squared splitting, a fit to the neutral- and charged-current energy spectra limits the fraction of oscillating to a sterile neutrino to be below 0.68 at 90% confidence level. A less stringent limit due to a possible contribution to the measured neutral-current event rate at the far site from e appearance at the current experimental limit is also presented.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: David Auty
Date Deposited: 06 Feb 2012 20:59
Last Modified: 14 Mar 2017 00:23
URI: http://sro.sussex.ac.uk/id/eprint/29006

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