•
Publication Date: 2016
Publication Name: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
•
by J. Ratchford and N. Mayer
Publication Date: 2011
Publication Name: Phys. Rev. D
Research Interests:
•
Results are reported from a search for active to sterile neutrino oscillations in the MINOS long-baseline experiment, based on the observation of neutral-current neutrino interactions, from an exposure to the NuMI neutrino beam of... more
Results are reported from a search for active to sterile neutrino oscillations in the MINOS long-baseline experiment, based on the observation of neutral-current neutrino interactions, from an exposure to the NuMI neutrino beam of 7.07×10(20) protons on target. A total of 802 neutral-current event candidates is observed in the Far Detector, compared to an expected number of 754 ± 28(stat) ± 37(syst) for oscillations among three active flavors. The fraction f(s) of disappearing ν(μ) that may transition to ν(s) is found to be less than 22% at the 90% C.L.
Publication Date: 2011
Publication Name: Physical review letters
Research Interests:
•
This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ν(μ) production, accumulating an exposure of 1.71 × 10²⁰ protons on target. In... more
This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for ν(μ) production, accumulating an exposure of 1.71 × 10²⁰ protons on target. In the Far Detector, 97 charged current ν(μ) events are observed. The no-oscillation hypothesis predicts 156 events and is excluded at 6.3σ. The best fit to oscillation yields |Δm²| = [3.36(-0.40)(+0.46)(stat) ± 0.06(syst)] × 10⁻³ eV², sin²(2θ) = 0.86(-0.12)(+0.11)(stat) ± 0.01(syst). The MINOS ν(μ) and ν(μ) measurements are consistent at the 2.0% confidence level, assuming identical underlying oscillation parameters.
Publication Date: Jan 8, 2011
Publication Name: Physical review letters
Research Interests:
•
Publication Date: 2012
Publication Name: Physical Review Letters
Research Interests:
•
by J. Ratchford and N. Mayer
Publication Date: 2011
Publication Name: Physical Review Letters
Research Interests:
•
Publication Date: 2011
Publication Name: Physical Review Letters
Research Interests:
•
Publication Date: 2012
Publication Name: Physical Review D
Research Interests:
•
Publication Date: 2011
Publication Name: Physical Review D
Research Interests:
•
by J. Ratchford and N. Mayer
Publication Date: 2011
Publication Name: Astroparticle Physics
Research Interests:
•