Sterile Neutrino searches with MINOS and MINOS+
L.H. Whitehead* and
On behalf of the MINOS/MINOS+ collaboration*: corresponding author
Pre-published on:
February 02, 2018
Published on:
March 20, 2018
Abstract
A search for sterile neutrinos was performed by looking for muon neutrino disappearance using the MINOS/MINOS+ detectors. The two detectors are at baselines of 1.04km and 735km from the neutrino production target of the NuMI neutrino beam at Fermilab. The data exposure consists of 10.56×1020protons-on-target from a beam configuration with a neutrino energy distribution peaked at 3GeV and a further 5.8×1020protons-on-target in a higher energy configuration with a beam peak energy of 7GeV. A simultaneous analysis of the νμ charged-current and neutral-current neutrino energy spectra in the two detectors, using a 3+1 sterile neutrino model, yields no evidence of sterile neutrino mixing. A world-leading limit on the sterile mixing angle sin2θ24 is set for many values of the sterile neutrino mass-splitting Δm241>10−4eV2.
DOI: https://doi.org/10.22323/1.314.0144
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