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Constraining the NuMI neutrino flux using inverse muon decay reactions in MINERvA

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arxiv 2107.01059 v3 pith:32LRNQSZ submitted 2021-07-02 hep-ex

Constraining the NuMI neutrino flux using inverse muon decay reactions in MINERvA

D. Ruterbories , Z. Ahmad Dar , F. Akbar , M. V. Ascencio , A. Bashyal , A. Bercellie , M. Betancourt , A. Bodek
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J. L. Bonilla A. Bravar H. Budd G. Caceres T. Cai M.F. Carneiro G.A. D\'Iaz H. da Motta J. Felix L. Fields A. Filkins R. Fine A.M. Gago H. Gallagher A. Ghosh R. Gran D.A. Harris S. Henry D. Jena S. Jena J. Kleykamp M. Kordosky D. Last T. Le A. Lozano X.-G. Lu E. Maher S. Manly W.A. Mann C. Mauger K.S. McFarland A.M. McGowan B. Messerly J. Miller J.G. Morf\'in D. Naples J.K. Nelson C. Nguyen A. Norrick A. Olivier V. Paolone G.N. Perdue K.-J. Plows M.A. Ram\'irez H. Ray H. Schellman C.J. Solano Salinas H. Su M. Sultana V.S. Syrotenko E. Valencia N.H. Vaughan A.V. Waldron B. Yaeggy K. Yang L. Zazueta (The MINERvA Collaboration)
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keywords neutrinofluxhigh-energybeamdecayeventsinversemuon
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Inverse muon decay, $\nu_\mu e^-\to\mu^-\nu_e$, is a reaction whose cross-section can be predicted with very small uncertainties. It has a neutrino energy threshold of $\approx 11$ GeV and can be used to constrain the high-energy part of the flux in the NuMI neutrino beam. This reaction is the dominant source of events which only contain high-energy muons nearly parallel to the direction of the neutrino beam. We have isolated a sample of hundreds of such events in neutrino and anti-neutrino enhanced beams, and have constrained the predicted high-energy flux.

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