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. 2011 May 6;106(18):181801.
doi: 10.1103/PhysRevLett.106.181801. Epub 2011 May 2.

Measurement of the neutrino mass splitting and flavor mixing by MINOS

P Adamson  1 C AndreopoulosR ArmstrongD J AutyD S AyresC BackhouseG BarrM BishaiA BlakeG J BockD J BoehnleinD BogertS CavanaughD CherdackS ChildressB C ChoudharyJ A B CoelhoS J ColemanL CorwinD Cronin-HennessyI Z DankoJ K de JongN E DevenishM V DiwanM DormanC O EscobarJ J EvansE FalkG J FeldmanM V FrohneH R GallagherR A GomesM C GoodmanP GouffonN GrafR GranN GrantK GrzelakA HabigD HarrisJ HartnellR HatcherA HimmelA HolinX HuangJ HylenJ IlicG M IrwinZ IsvanD E JaffeC JamesD JensenT KafkaS M S KasaharaG KoizumiS KoppM KordoskyA KreymerK LangG LefeuvreJ LingP J LitchfieldR P LitchfieldL LoiaconoP LucasW A MannM L MarshakN MayerA M McGowanR MehdiyevJ R MeierM D MessierD G MichaelW H MillerS R MishraJ MitchellC D MooreJ MorfínL MualemS MufsonJ MusserD NaplesJ K NelsonH B NewmanR J NicholJ A NowakW P OliverM OrchanianR OspanovJ PaleyR B PattersonG PawloskiG F PearceD A PetytS Phan-BuddR K PlunkettX QiuJ RatchfordT M RauferB RebelP A RodriguesC RosenfeldH A RubinM C SanchezJ SchnepsP SchreinerP ShanahanC SmithA SousaP StamoulisM StraitN TaggR L TalagaJ ThomasM A ThomsonG TintiR TonerG TzanakosJ UrheimP VahleB VirenA WeberR C WebbC WhiteL WhiteheadS G WojcickiT YangR ZwaskaMINOS Collaboration
Affiliations

Measurement of the neutrino mass splitting and flavor mixing by MINOS

P Adamson et al. Phys Rev Lett. .

Abstract

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 7.25×10(20) protons on target. A fit to neutrino oscillations yields values of |Δm(2)|=(2.32(-0.08)(+0.12))×10(-3) eV(2) for the atmospheric mass splitting and sin(2)(2θ)>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.

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