Aguilar-Arevalo A A, Anderson C E, Brice S J, Brown B C, Bugel L, Conrad J M, Djurcic Z, Fleming B T, Ford R, Garcia F G, Garvey G T, Gonzales J, Grange J, Green C, Green J A, Imlay R, Johnson R A, Karagiorgi G, Katori T, Kobilarcik T, Linden S K, Louis W C, Mahn K B M, Marsh W, Mauger C, McGary V T, Metcalf W, Mills G B, Moore C D, Mousseau J, Nelson R H, Nienaber P, Nowak J A, Osmanov B, Pavlovic Z, Perevalov D, Polly C C, Ray H, Roe B P, Russell A D, Shaevitz M H, Sorel M, Spitz J, Stancu I, Stefanski R J, Tayloe R, Tzanov M, Van de Water R G, Wascko M O, White D H, Wilking M J, Zeller G P, Zimmerman E D
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Distrito Federal 04510, México.
Phys Rev Lett. 2009 Sep 11;103(11):111801. doi: 10.1103/PhysRevLett.103.111801.
The MiniBooNE Collaboration reports initial results from a search for nu(mu)-->nu(e) oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10(20) protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200<E(nu)(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.
MiniBooNE合作组报告了寻找μ中微子到电子中微子振荡的初步结果。使用对应于3.39×10²⁰个靶上质子的数据样本进行了无信号分析。假设准弹性散射，在重建的中微子能量全范围内，数据与本底预测一致，200＜Eν(QE)＜3000 MeV：在此能量范围内观测到144个类电子事例，而预期为139.2±17.6个事例。在低能区（200 - 475 MeV）和高能区（475 - 1250 MeV）均未观测到显著的事例过量。对于洛斯阿拉莫斯国家实验室液体闪烁体中微子探测器数据所暗示的反中微子振荡，这些数据尚无定论。
