TY - JOUR

T1 - Search for the disappearance of muon antineutrinos in the NuMI neutrino beam

AU - Adamson, P.

AU - Nowak, Jaroslaw

AU - MINOS Collaboration

N1 - © 2011 American Physical Society

PY - 2011/10/11

Y1 - 2011/10/11

N2 - We report constraints on antineutrino oscillation parameters that were obtained by using the two MINOS detectors to measure the 7% muon antineutrino component of the NuMI neutrino beam. In the Far Detector, we select 130 events in the charged-current muon antineutrino sample, compared to a prediction of 136.4±11.7(stat)-8.9+10.2(syst) events under the assumption |Δm̅ 2|=2.32×10-3  eV2, sin⁡2(2θ̅ )=1.0. Assuming no oscillations occur at the Near Detector baseline, a fit to the two-flavor oscillation approximation constrains |Δm̅ 2|<3.37×10-3  eV2 at the 90% confidence level with sin⁡2(2θ̅ )=1.0.

AB - We report constraints on antineutrino oscillation parameters that were obtained by using the two MINOS detectors to measure the 7% muon antineutrino component of the NuMI neutrino beam. In the Far Detector, we select 130 events in the charged-current muon antineutrino sample, compared to a prediction of 136.4±11.7(stat)-8.9+10.2(syst) events under the assumption |Δm̅ 2|=2.32×10-3  eV2, sin⁡2(2θ̅ )=1.0. Assuming no oscillations occur at the Near Detector baseline, a fit to the two-flavor oscillation approximation constrains |Δm̅ 2|<3.37×10-3  eV2 at the 90% confidence level with sin⁡2(2θ̅ )=1.0.

U2 - 10.1103/PhysRevD.84.071103

DO - 10.1103/PhysRevD.84.071103

M3 - Journal article

VL - 84

JO - Physical Review D – Particles and Fields

JF - Physical Review D – Particles and Fields

SN - 1550-2368

IS - 7

M1 - 071103

ER -