6533b831fe1ef96bd1298d9c

RESEARCH PRODUCT

Search for Electron Antineutrino Appearance at theΔm2∼1  eV2Scale

Janet ConradR. J. StefanskiR. FordC. GreenW. MetcalfR. H. NelsonM. H. ShaevitzD. PerevalovL. BugelT. KobilarcikV. T. McgaryG. B. MillsB. OsmanovB. C. BrownJ. GonzalesG. P. ZellerI. StancuKendall MahnC. C. PollyW. MarshZ. DjurcicB. P. RoeRex TayloeJ. GrangeG. KaragiorgiA. D. RussellM. J. WilkingP. NienaberTeppei KatoriJ. A. GreenH. RayG. T. GarveyD. H. WhiteR. G. Van De WaterM. O. WasckoJ. A. NowakZ. PavlovicR. A. JohnsonAlexis A. Aguilar-arevaloC. D. MooreJ. SpitzC. MaugerE. D. ZimmermanS. J. BriceB. T. FlemingS. K. LindenM. SorelW. C. LouisR. ImlayC. E. AndersonM. TzanovF. G. GarciaJ. Mousseau

subject

Nuclear physicsPhysicsNuclear reactionMiniBooNEParticle physicsLiquid Scintillator Neutrino DetectorQuasielastic scatteringGeneral Physics and AstronomyNeutrinoNuclear ExperimentNeutrino oscillationElectron neutrinoLepton

description

The MiniBooNE Collaboration reports initial results from a search for nu{sub m}u->nu{sub e} oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10{sup 20} protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200<E{sub n}u{sup QE}<3000 MeV: 144 electronlike events have been observed in this energy range, compared to an expectation of 139.2+-17.6 events. No significant excess of events has been observed, both at low energy, 200-475 MeV, and at high energy, 475-1250 MeV. The data are inconclusive with respect to antineutrino oscillations suggested by data from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

https://doi.org/10.1103/physrevlett.103.111801