Article ID Journal Published Year Pages File Type
1840246 Nuclear Physics B 2016 21 Pages PDF
Abstract

The MINOS experiment ran from 2003 until 2012 and collected a data sample including 10.71×102010.71×1020 protons-on-target (POT) of beam neutrinos, 3.36×10203.36×1020 POT of beam antineutrinos and an atmospheric neutrino exposure of 37.88 kt yrs. The final measurement of the atmospheric neutrino oscillation parameters, Δm322 and θ23θ23, came from a full three flavour oscillation analysis of the combined CC νμνμ and CC ν‾μ beam and atmospheric samples and the CC νeνe and CC ν‾e appearance samples. This analysis yielded the most precise measurement of the atmospheric mass splitting Δm322 performed to date. The results are |Δm322|=[2.28–2.46]×10−3 eV2 (68%) and sin2⁡θ23=0.35–0.65sin2⁡θ23=0.35–0.65 (90%) in the normal hierarchy, and |Δm322|=[2.32–2.53]×10−3 eV2 (68%) and sin2⁡θ23=0.34–0.67sin2⁡θ23=0.34–0.67 (90%) in the inverted hierarchy. The successor to MINOS in the NOν  A era at FNAL, MINOS+, is now collecting data mostly in the 3–10 GeV3–10 GeV region, and an analysis of νμνμ disappearance using the first 2.99×10202.99×1020 POT of data produced results very consistent with those from MINOS. Future data will further test the standard neutrino oscillation paradigm and allow for improved searches for exotic phenomena including sterile neutrinos, large extra dimensions and non-standard interactions.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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