6533b853fe1ef96bd12add82

RESEARCH PRODUCT

Event Excess in the MiniBooNE Search forν¯μ→ν¯eOscillations

M. SorelC. E. AndersonW. C. LouisM. O. WasckoM. TzanovF. G. GarciaL. BugelM. J. WilkingC. C. PollyZ. PavlovicAlexis A. Aguilar-arevaloR. FordJ. MousseauJ. A. GreenH. RayR. G. Van De WaterT. KobilarcikG. P. ZellerJ. A. NowakR. ImlayC. D. MooreD. H. WhiteS. J. BriceA. D. RussellR. DharmapalanR. H. NelsonG. KaragiorgiJanet ConradP. NienaberR. A. JohnsonRex TayloeE. D. ZimmermanM. H. ShaevitzC. MaugerR. J. StefanskiJ. MirabalB. P. RoeW. MetcalfV. T. NguyenR. SchiratoG. T. GarveyJ. SpitzW. MarshB. T. FlemingS. K. LindenTeppei KatoriD. PerevalovKendall MahnJ. GrangeG. B. MillsB. OsmanovZ. DjurcicB. C. BrownI. Stancu

subject

Nuclear physicsMiniBooNEPhysicsParticle physicsAntiparticleAntimatterGeneral Physics and AstronomyNeutrinoNeutrino oscillationParticle identificationEnergy (signal processing)Lepton

description

The MiniBooNE experiment at Fermilab reports results from a search for {nu}{sub {mu}{yields}{nu}e} oscillations, using a data sample corresponding to 5.66x10{sup 20} protons on target. An excess of 20.9{+-}14.0 events is observed in the energy range 475<E{sub {nu}}{sup QE}<1250 MeV, which, when constrained by the observed {nu}{sub {mu}} events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for {nu}{sub {mu}{yields}{nu}e} oscillations, the best-fit point has a {chi}{sup 2} probability of 8.7%. The data are consistent with {nu}{sub {mu}{yields}{nu}e} oscillations in the 0.1 to 1.0 eV{sup 2} {Delta}m{sup 2} range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

yearjournalcountryeditionlanguage
2010-10-26Physical Review Letters
https://doi.org/10.1103/physrevlett.105.181801