TY - JOUR

T1 - Event excess in the MiniBooNE search for ν̅ μ→ν̅ e oscillations

AU - Aguilar-Arevalo, A.A.

AU - Nowak, Jaroslaw

N1 - © 2010 The American Physical Society

PY - 2010/10/26

Y1 - 2010/10/26

N2 - The MiniBooNE experiment at Fermilab reports results from a search for ν̅ μ→ν̅ e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475<EνQE<1250  MeV, which, when constrained by the observed ν̅ μ events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ν̅ μ→ν̅ e oscillations, the best-fit point has a χ2 probability of 8.7%. The data are consistent with ν̅ μ→ν̅ e oscillations in the 0.1 to 1.0  eV2 Δm2 range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

AB - The MiniBooNE experiment at Fermilab reports results from a search for ν̅ μ→ν̅ e oscillations, using a data sample corresponding to 5.66×1020 protons on target. An excess of 20.9±14.0 events is observed in the energy range 475<EνQE<1250  MeV, which, when constrained by the observed ν̅ μ events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ν̅ μ→ν̅ e oscillations, the best-fit point has a χ2 probability of 8.7%. The data are consistent with ν̅ μ→ν̅ e oscillations in the 0.1 to 1.0  eV2 Δm2 range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.

U2 - 10.1103/PhysRevLett.105.181801

DO - 10.1103/PhysRevLett.105.181801

M3 - Journal article

VL - 105

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 18

M1 - 181801

ER -