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DOE OSTI · 3010555

Enhanced search for neutral current Δ radiative single-photon production in MicroBooNE

Abratenko, P. [Tufts University]·Andrade Aldana, D. [Illinois Institute of Technology (IIT)]·Arellano, L. [The University of Manchester]·Asaadi, J. [University of Texas]·Ashkenazi, A. [Tel Aviv University]·Balasubramanian, S. [Fermi National Accelerator Laboratory (FNAL)]·Baller, B. [Fermi National Accelerator Laboratory (FNAL)]·Barnard, A. [University of Oxford]·Barr, G. [University of Oxford]·Barrow, D. [University of Oxford]·Barrow, J. [University of Minnesota]·Basque, V. [Fermi National Accelerator Laboratory (FNAL)]·Bateman, J. [Imperial College London; The University of Manchester]·Benevides Rodrigues, O. [Illinois Institute of Technology (IIT)]·Berkman, S. [Michigan State University]·Bhat, A. [University of Chicago]·Bhattacharya, M. [Fermi National Accelerator Laboratory (FNAL)]·Bishai, M. [Brookhaven National Laboratory (BNL)]·Blake, A. [Lancaster University]·Bogart, B. [University of Michigan]·Bolton, T. [Kansas State University (KSU)]·Brunetti, M. B. [The University of Kansas; University of Warwick]·Camilleri, L. [Columbia University]·Caratelli, D. [University of California]·Cavanna, F. [Fermi National Accelerator Laboratory (FNAL)]·Cerati, G. [Fermi National Accelerator Laboratory (FNAL)]·Chappell, A. [University of Warwick]·Chen, Y. [SLAC National Accelerator Laboratory]·Conrad, J. M. [Massachusetts Institute of Technology (MIT)]·Convery, M. [SLAC National Accelerator Laboratory]·Cooper-Troendle, L. [University of Pittsburgh]·Crespo-Anadón, J. I. [Centro de Investigaciones Energéticas]·Cross, R. [University of Warwick]·Del Tutto, M. [Fermi National Accelerator Laboratory (FNAL)]·Dennis, S. R. [University of Cambridge]·Detje, P. [University of Cambridge]·Diurba, R. [Universität Bern]·Djurcic, Z. [Argonne National Laboratory (ANL)]·Duffy, K. [University of Oxford]·Dytman, S. [University of Pittsburgh]·Eberly, B. [University of Southern Maine]·Englezos, P. [Rutgers University]·Ereditato, A. [University of Chicago; Fermi National Accelerator Laboratory (FNAL)]·Evans, J. J. [The University of Manchester]·Fang, C. [University of California]·Foreman, W. [Illinois Institute of Technology (IIT); Los Alamos National Laboratory (LANL)]·Fleming, B. T. [University of Chicago]·Franco, D. [University of Chicago]·Furmanski, A. P. [University of Minnesota]·Gao, F. [University of California]·Garcia-Gamez, D. [Universidad de Granada]·Gardiner, S. [Fermi National Accelerator Laboratory (FNAL)]·Ge, G. [Columbia University]·Gollapinni, S. [Los Alamos National Laboratory (LANL)]·Gramellini, E. [The University of Manchester]·Green, P. [University of Oxford]·Greenlee, H. [Fermi National Accelerator Laboratory (FNAL)]·Gu, L. [Lancaster University]·Gu, W. [Brookhaven National Laboratory (BNL)]·Guenette, R. [The University of Manchester]·Guzowski, P. [The University of Manchester]·Hagaman, L. [University of Chicago] (ORCID:0000000341789565)·Handley, M. D. [University of Cambridge]·Hen, O. [Massachusetts Institute of Technology (MIT)]·Hilgenberg, C. [University of Minnesota]·Horton-Smith, G. A. [Kansas State University (KSU)]·Hussain, A. [Kansas State University (KSU)]·Irwin, B. [University of Minnesota]·Ismail, M. S. [University of Pittsburgh]·James, C. [Fermi National Accelerator Laboratory (FNAL)]·Ji, X. [Nankai University]·Jo, J. H. [Brookhaven National Laboratory (BNL)]·Johnson, R. A. [University of Cincinnati]·Kalra, D. [Columbia University]·Karagiorgi, G. [Columbia University]·Ketchum, W. [Fermi National Accelerator Laboratory (FNAL)]·Kirby, M. [Brookhaven National Laboratory (BNL)]·Kobilarcik, T. [Fermi National Accelerator Laboratory (FNAL)]·Lane, N. [Imperial College London; The University of Manchester]·Li, J.-Y. [University of Edinburgh]·Li, Y. [Brookhaven National Laboratory (BNL)]·Lin, K. [Rutgers University]·Littlejohn, B. R. [Illinois Institute of Technology (IIT)]·Liu, L. [Fermi National Accelerator Laboratory (FNAL)]·Louis, W. C. [Los Alamos National Laboratory (LANL)]·Luo, X. [University of California]·Mahmud, T. [Lancaster University]·Majeed, N. [Kansas State University (KSU)]·Mariani, C. [Center for Neutrino Physics]·Marsden, D. [The University of Manchester]·Marshall, J. [University of Warwick]·Martinez, N. [Kansas State University (KSU)]·Martinez Caicedo, D. A. [South Dakota School of Mines and Technology (SDSMT)]·Martynenko, S. [Brookhaven National Laboratory (BNL)]·Mastbaum, A. [Rutgers University]·Mawby, I. [Lancaster University]·McConkey, N. [Queen Mary University of London]·Mellet, L. [Michigan State University]·Mendez, J. [Louisiana State University]·Micallef, J. [Massachusetts Institute of Technology (MIT); Tufts University]
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Abstract

We report results from an updated search for neutral current (NC) resonant Δ⁡(1232) baryon production and subsequent Δ radiative decay (NC Δ → 𝑁⁢𝛾). We consider events with and without final state protons; events with a proton can be compared with the kinematics of a Δ⁡(1232) baryon decay, while events without a visible proton represent a more generic phase space. In order to maximize sensitivity to each topology, we simultaneously make use of two different reconstruction paradigms, Pandora and Wire-Cell, which have complementary strengths, and select mostly orthogonal sets of events. Considering an overall scaling of the NC Δ → 𝑁⁢𝛾 rate as an explanation of the MiniBooNE anomaly, our data exclude this hypothesis at 94.4% CL. When we decouple the expected correlations between NC Δ → 𝑁⁢𝛾 events with and without final state protons, our data exclude an interpretation in which all excess events have associated protons at 2.0⁢𝜎, and are consistent with an interpretation in which all excess events have no associated protons at 0.63⁢𝜎.

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Abratenko, P. [Tufts University], Andrade Aldana, D. [Illinois Institute of Technology (IIT)], Arellano, L. [The University of Manchester], Asaadi, J. [University of Texas], Ashkenazi, A. [Tel Aviv University], Balasubramanian, S. [Fermi National Accelerator Laboratory (FNAL)], Baller, B. [Fermi National Accelerator Laboratory (FNAL)], Barnard, A. [University of Oxford], Barr, G. [University of Oxford], Barrow, D. [University of Oxford], Barrow, J. [University of Minnesota], Basque, V. [Fermi National Accelerator Laboratory (FNAL)], Bateman, J. [Imperial College London; The University of Manchester], Benevides Rodrigues, O. [Illinois Institute of Technology (IIT)], Berkman, S. [Michigan State University], Bhat, A. [University of Chicago], Bhattacharya, M. [Fermi National Accelerator Laboratory (FNAL)], Bishai, M. [Brookhaven National Laboratory (BNL)], Blake, A. [Lancaster University], Bogart, B. [University of Michigan], Bolton, T. [Kansas State University (KSU)], Brunetti, M. B. [The University of Kansas; University of Warwick], Camilleri, L. [Columbia University], Caratelli, D. [University of California], Cavanna, F. [Fermi National Accelerator Laboratory (FNAL)], Cerati, G. [Fermi National Accelerator Laboratory (FNAL)], Chappell, A. [University of Warwick], Chen, Y. [SLAC National Accelerator Laboratory], Conrad, J. M. [Massachusetts Institute of Technology (MIT)], Convery, M. [SLAC National Accelerator Laboratory], Cooper-Troendle, L. [University of Pittsburgh], Crespo-Anadón, J. I. [Centro de Investigaciones Energéticas], Cross, R. [University of Warwick], Del Tutto, M. [Fermi National Accelerator Laboratory (FNAL)], Dennis, S. R. [University of Cambridge], Detje, P. [University of Cambridge], Diurba, R. [Universität Bern], Djurcic, Z. [Argonne National Laboratory (ANL)], Duffy, K. [University of Oxford], Dytman, S. [University of Pittsburgh], Eberly, B. [University of Southern Maine], Englezos, P. [Rutgers University], Ereditato, A. [University of Chicago; Fermi National Accelerator Laboratory (FNAL)], Evans, J. J. [The University of Manchester], Fang, C. [University of California], Foreman, W. [Illinois Institute of Technology (IIT); Los Alamos National Laboratory (LANL)], Fleming, B. T. [University of Chicago], Franco, D. [University of Chicago], Furmanski, A. P. [University of Minnesota], Gao, F. [University of California], Garcia-Gamez, D. [Universidad de Granada], Gardiner, S. [Fermi National Accelerator Laboratory (FNAL)], Ge, G. [Columbia University], Gollapinni, S. [Los Alamos National Laboratory (LANL)], Gramellini, E. [The University of Manchester], Green, P. [University of Oxford], Greenlee, H. [Fermi National Accelerator Laboratory (FNAL)], Gu, L. [Lancaster University], Gu, W. [Brookhaven National Laboratory (BNL)], Guenette, R. [The University of Manchester], Guzowski, P. [The University of Manchester], Hagaman, L. [University of Chicago] (ORCID:0000000341789565), Handley, M. D. [University of Cambridge], Hen, O. [Massachusetts Institute of Technology (MIT)], Hilgenberg, C. [University of Minnesota], Horton-Smith, G. A. [Kansas State University (KSU)], Hussain, A. [Kansas State University (KSU)], Irwin, B. [University of Minnesota], Ismail, M. S. [University of Pittsburgh], James, C. [Fermi National Accelerator Laboratory (FNAL)], Ji, X. [Nankai University], Jo, J. H. [Brookhaven National Laboratory (BNL)], Johnson, R. A. [University of Cincinnati], Kalra, D. [Columbia University], Karagiorgi, G. [Columbia University], Ketchum, W. [Fermi National Accelerator Laboratory (FNAL)], Kirby, M. [Brookhaven National Laboratory (BNL)], Kobilarcik, T. [Fermi National Accelerator Laboratory (FNAL)], Lane, N. [Imperial College London; The University of Manchester], Li, J.-Y. [University of Edinburgh], Li, Y. [Brookhaven National Laboratory (BNL)], Lin, K. [Rutgers University], Littlejohn, B. R. [Illinois Institute of Technology (IIT)], Liu, L. [Fermi National Accelerator Laboratory (FNAL)], Louis, W. C. [Los Alamos National Laboratory (LANL)], Luo, X. [University of California], Mahmud, T. [Lancaster University], Majeed, N. [Kansas State University (KSU)], Mariani, C. [Center for Neutrino Physics], Marsden, D. [The University of Manchester], Marshall, J. [University of Warwick], Martinez, N. [Kansas State University (KSU)], Martinez Caicedo, D. A. [South Dakota School of Mines and Technology (SDSMT)], Martynenko, S. [Brookhaven National Laboratory (BNL)], Mastbaum, A. [Rutgers University], Mawby, I. [Lancaster University], McConkey, N. [Queen Mary University of London], Mellet, L. [Michigan State University], Mendez, J. [Louisiana State University], Micallef, J. [Massachusetts Institute of Technology (MIT); Tufts University]. 2025-11-17. Enhanced search for neutral current Δ radiative single-photon production in MicroBooNE. https://doi.org/10.1103/49ds-5hfh

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