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Search for an Excess of Electron Neutrino Interactions in MicroBooNE Using Multiple Final-State Topologies

P. Abratenko et al. (MicroBooNE Collaboration)
Phys. Rev. Lett. 128, 241801 – Published 13 June 2022
Physics logo See Viewpoint: Neutrino Mystery Endures

Abstract

We present a measurement of νe interactions from the Fermilab Booster Neutrino Beam using the MicroBooNE liquid argon time projection chamber to address the nature of the excess of low energy interactions observed by the MiniBooNE Collaboration. Three independent νe searches are performed across multiple single electron final states, including an exclusive search for two-body scattering events with a single proton, a semi-inclusive search for pionless events, and a fully inclusive search for events containing all hadronic final states. With differing signal topologies, statistics, backgrounds, reconstruction algorithms, and analysis approaches, the results are found to be either consistent with or modestly lower than the nominal νe rate expectations from the Booster Neutrino Beam and no excess of νe events is observed.

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  • Received 29 October 2021
  • Accepted 13 April 2022

DOI:https://doi.org/10.1103/PhysRevLett.128.241801

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Viewpoint

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Neutrino Mystery Endures

Published 13 June 2022

New neutrino-oscillation data show no sign of an anomalous signal seen in previous studies, but the analyses can’t yet fully rule out its presence.

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See Also

Search for an anomalous excess of charged-current quasielastic νe interactions with the MicroBooNE experiment using Deep-Learning-based reconstruction

P. Abratenko et al. (The MicroBooNE Collaboration)
Phys. Rev. D 105, 112003 (2022)

Search for an anomalous excess of charged-current νe interactions without pions in the final state with the MicroBooNE experiment

P. Abratenko et al. (The MicroBooNE Collaboration)
Phys. Rev. D 105, 112004 (2022)

Search for an anomalous excess of inclusive charged-current νe interactions in the MicroBooNE experiment using Wire-Cell reconstruction

P. Abratenko et al. (MicroBooNE Collaboration1)
Phys. Rev. D 105, 112005 (2022)

MicroBooNE and the νe Interpretation of the MiniBooNE Low-Energy Excess

C. A. Argüelles, I. Esteban, M. Hostert, K. J. Kelly, J. Kopp, P. A. N. Machado, I. Martinez-Soler, and Y. F. Perez-Gonzalez
Phys. Rev. Lett. 128, 241802 (2022)

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Vol. 128, Iss. 24 — 17 June 2022

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