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First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector

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First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector. / MicroBooNE Collaboration ; Blake, A.; Devitt, A. et al.
In: Physical review letters, Vol. 130, No. 1, 011801, 05.01.2023.

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MicroBooNE Collaboration, Blake A, Devitt A, Nowak J, Patel N, Pophale I et al. First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector. Physical review letters. 2023 Jan 5;130(1):011801. doi: 10.1103/PhysRevLett.130.011801

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@article{1688309de613463eb994205e16d4fdac,
title = "First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector",
abstract = "We present a search for eV-scale sterile neutrino oscillations in the MicroBooNE liquid argon detector, simultaneously considering all possible appearance and disappearance effects within the $3+1$ active-to-sterile neutrino oscillation framework. We analyze the neutrino candidate events for the recent measurements of charged-current $\nu_e$ and $\nu_{\mu}$ interactions in the MicroBooNE detector, using data corresponding to an exposure of 6.37$\times$10$^{20}$ protons on target from the Fermilab booster neutrino beam. We observe no evidence of light sterile neutrino oscillations and derive exclusion contours at the $95\%$ confidence level in the plane of the mass-squared splitting $\Delta m^2_{41}$ and the sterile neutrino mixing angles $\theta_{\mu e}$ and $\theta_{ee}$, excluding part of the parameter space allowed by experimental anomalies. Cancellation of $\nu_e$ appearance and $\nu_e$ disappearance effects due to the full $3+1$ treatment of the analysis leads to a degeneracy when determining the oscillation parameters, which is discussed in this paper and will be addressed by future analyses. ",
keywords = "hep-ex",
author = "{MicroBooNE Collaboration} and P. Abratenko and Aldana, {D. Andrade} and J. Anthony and L. Arellano and J. Asaadi and A. Ashkenazi and S. Balasubramanian and B. Baller and G. Barr and J. Barrow and V. Basque and L. Bathe-Peters and Rodrigues, {O. Benevides} and S. Berkman and A. Bhanderi and M. Bhattacharya and M. Bishai and A. Blake and B. Bogart and T. Bolton and Book, {J. Y.} and L. Camilleri and D. Caratelli and Terrazas, {I. Caro} and F. Cavanna and G. Cerati and Y. Chen and Conrad, {J. M.} and M. Convery and L. Cooper-Troendle and Crespo-Anadon, {J. I.} and Tutto, {M. Del} and Dennis, {S. R.} and P. Detje and A. Devitt and R. Diurba and R. Dorrill and K. Duffy and S. Dytman and B. Eberly and A. Ereditato and Evans, {J. J.} and R. Fine and Finnerud, {O. G.} and Fleming, {B. T.} and J. Nowak and N. Patel and I. Pophale and C. Thorpe",
note = "9 pages, 4 figures",
year = "2023",
month = jan,
day = "5",
doi = "10.1103/PhysRevLett.130.011801",
language = "English",
volume = "130",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector

AU - MicroBooNE Collaboration

AU - Abratenko, P.

AU - Aldana, D. Andrade

AU - Anthony, J.

AU - Arellano, L.

AU - Asaadi, J.

AU - Ashkenazi, A.

AU - Balasubramanian, S.

AU - Baller, B.

AU - Barr, G.

AU - Barrow, J.

AU - Basque, V.

AU - Bathe-Peters, L.

AU - Rodrigues, O. Benevides

AU - Berkman, S.

AU - Bhanderi, A.

AU - Bhattacharya, M.

AU - Bishai, M.

AU - Blake, A.

AU - Bogart, B.

AU - Bolton, T.

AU - Book, J. Y.

AU - Camilleri, L.

AU - Caratelli, D.

AU - Terrazas, I. Caro

AU - Cavanna, F.

AU - Cerati, G.

AU - Chen, Y.

AU - Conrad, J. M.

AU - Convery, M.

AU - Cooper-Troendle, L.

AU - Crespo-Anadon, J. I.

AU - Tutto, M. Del

AU - Dennis, S. R.

AU - Detje, P.

AU - Devitt, A.

AU - Diurba, R.

AU - Dorrill, R.

AU - Duffy, K.

AU - Dytman, S.

AU - Eberly, B.

AU - Ereditato, A.

AU - Evans, J. J.

AU - Fine, R.

AU - Finnerud, O. G.

AU - Fleming, B. T.

AU - Nowak, J.

AU - Patel, N.

AU - Pophale, I.

AU - Thorpe, C.

N1 - 9 pages, 4 figures

PY - 2023/1/5

Y1 - 2023/1/5

N2 - We present a search for eV-scale sterile neutrino oscillations in the MicroBooNE liquid argon detector, simultaneously considering all possible appearance and disappearance effects within the $3+1$ active-to-sterile neutrino oscillation framework. We analyze the neutrino candidate events for the recent measurements of charged-current $\nu_e$ and $\nu_{\mu}$ interactions in the MicroBooNE detector, using data corresponding to an exposure of 6.37$\times$10$^{20}$ protons on target from the Fermilab booster neutrino beam. We observe no evidence of light sterile neutrino oscillations and derive exclusion contours at the $95\%$ confidence level in the plane of the mass-squared splitting $\Delta m^2_{41}$ and the sterile neutrino mixing angles $\theta_{\mu e}$ and $\theta_{ee}$, excluding part of the parameter space allowed by experimental anomalies. Cancellation of $\nu_e$ appearance and $\nu_e$ disappearance effects due to the full $3+1$ treatment of the analysis leads to a degeneracy when determining the oscillation parameters, which is discussed in this paper and will be addressed by future analyses.

AB - We present a search for eV-scale sterile neutrino oscillations in the MicroBooNE liquid argon detector, simultaneously considering all possible appearance and disappearance effects within the $3+1$ active-to-sterile neutrino oscillation framework. We analyze the neutrino candidate events for the recent measurements of charged-current $\nu_e$ and $\nu_{\mu}$ interactions in the MicroBooNE detector, using data corresponding to an exposure of 6.37$\times$10$^{20}$ protons on target from the Fermilab booster neutrino beam. We observe no evidence of light sterile neutrino oscillations and derive exclusion contours at the $95\%$ confidence level in the plane of the mass-squared splitting $\Delta m^2_{41}$ and the sterile neutrino mixing angles $\theta_{\mu e}$ and $\theta_{ee}$, excluding part of the parameter space allowed by experimental anomalies. Cancellation of $\nu_e$ appearance and $\nu_e$ disappearance effects due to the full $3+1$ treatment of the analysis leads to a degeneracy when determining the oscillation parameters, which is discussed in this paper and will be addressed by future analyses.

KW - hep-ex

U2 - 10.1103/PhysRevLett.130.011801

DO - 10.1103/PhysRevLett.130.011801

M3 - Journal article

VL - 130

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 1

M1 - 011801

ER -