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PhysRevLett.106.181801.pdf (241.97 kB)

Measurement of the neutrino mass splitting and flavor mixing by MINOS

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posted on 2023-06-08, 09:52 authored by P Adamson, C Andreopoulos, R Armstrong, D.J Auty, D.S Ayres, C Backhouse, G Barr, M Bishai, A Blake, G.J Bock, N E Devenish, Elisabeth FalkElisabeth Falk, Jeff HartnellJeff Hartnell, G Lefeuvre, et al
Measurements of neutrino oscillations using the disappearance of muon neutrinos from the Fermilab NuMI neutrino beam as observed by the two MINOS detectors are reported. New analysis methods have been applied to an enlarged data sample from an exposure of $7.25 imes 10^{20}$ protons on target. A fit to neutrino oscillations yields values of $|Delta m^2| = (2.32^{+0.12}_{-0.08}) imes10^{-3}$,eV$^2$ for the atmospheric mass splitting and $ m sin^2!(2 heta) > 0.90$ (90%,C.L.) for the mixing angle. Pure neutrino decay and quantum decoherence hypotheses are excluded at 7 and 9 standard deviations, respectively.

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review Letters

ISSN

0031-9007

Publisher

American Physical Society

Issue

18

Volume

106

Page range

181801

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

First Open Access (FOA) Date

2016-03-22

First Compliant Deposit (FCD) Date

2016-11-10

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