First Measurement of Monoenergetic Muon Neutrino Charged Current Interactions
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PhysRevLett.120.141802.pdf
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Author(s)
Aguilar-Arevalo, A. A.
Brown, B. C.
Bugel, L.
Cheng, G.
Church, E. D.
Cooper, R. L.
Dharmapalan, R.
Djurcic, Z.
Finley, D. A.
Fitzpatrick, R. S.
Date Issued
April 2018
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aguilar-Arevalo, A. A. et al. "First Measurement of Monoenergetic Muon Neutrino Charged Current Interactions." Physical Review Letters 120, 14 (April 2018): 141802
Version
Final published version
Abstract
We report the first measurement of monoenergetic muon neutrino charged current interactions. MiniBooNE has isolated 236 MeV muon neutrino events originating from charged kaon decay at rest (K[superscript +]→μ[superscript +]ν[subscript μ]) at the NuMI beamline absorber. These signal ν[subscript μ]-carbon events are distinguished from primarily pion decay in flight ν[subscript μ] and ν[over ¯][subscript μ] backgrounds produced at the target station and decay pipe using their arrival time and reconstructed muon energy. The significance of the signal observation is at the 3.9σ level. The muon kinetic energy, neutrino-nucleus energy transfer (ω=E[subscript ν]-E[subscript μ]), and total cross section for these events are extracted. This result is the first known-energy, weak-interaction-only probe of the nucleus to yield a measurement of ω using neutrinos, a quantity thus far only accessible through electron scattering.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.120.141802
