DOE OSTI · 3239721
Inclusive Search for Anomalous Single-Photon Production in MicroBooNE
Abstract
We present an inclusive search for anomalous production of single-photon events from neutrino interactions in the MicroBooNE experiment. The search and its signal definition are motivated by the previous observation of a low-energy excess of electromagnetic shower events from the MiniBooNE experiment. We use the Wire-Cell reconstruction framework to select a sample of inclusive single-photon final-state interactions with a final efficiency and purity of 7.0% and 40.2%, respectively. We leverage simultaneous measurements of sidebands of charged current 𝜈 𝜇 interactions and neutral current interactions producing 𝜋 0 mesons to constrain signal and background predictions and reduce uncertainties. We perform a blind analysis using a dataset collected from February 2016 to July 2018, corresponding to an exposure of 6.34 × 10 20 protons on target from the Booster Neutrino Beam at Fermilab. In the full signal region, we observe agreement between the data and the prediction, with a goodness-of-fit 𝑝 value of 0.11. We then isolate a subsample of these events containing no visible protons, and observe 93 ± 22(stat) ±35(syst) data events above prediction, corresponding to just above 2𝜎 local significance, concentrated at shower energies below 600 MeV.
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Abratenko, P. [Tufts University] (ORCID:0000000169455941), Andrade Aldana, D. [Illinois Institute of Technology (IIT)] (ORCID:0009000831433374), Arellano, L. [The University of Manchester] (ORCID:0000000210931824), Asaadi, J. [University of Texas] (ORCID:0000000169155279), Ashkenazi, A. [Tel Aviv University] (ORCID:0000000219953851), Balasubramanian, S. [Fermi National Accelerator Laboratory (FNAL)], Baller, B. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000187319281), Barnard, A. [University of Oxford] (ORCID:0000000161171768), Barr, G. [University of Oxford] (ORCID:0000000297631882), Barrow, D. [University of Oxford] (ORCID:000000015844709X), Barrow, J. [University of Minnesota] (ORCID:0000000239931123), Basque, V. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000246000984), Bateman, J. [Imperial College London; The University of Manchester] (ORCID:0009000339153741), Benevides Rodrigues, O. [Illinois Institute of Technology (IIT)] (ORCID:0000000191816096), Berkman, S. [Michigan State University] (ORCID:000000028795459X), Bhat, A. [University of Chicago] (ORCID:0000000279940489), Bhattacharya, M. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:000000016395546X), Bishai, M. [Brookhaven National Laboratory (BNL)] (ORCID:0000000318290969), Blake, A. [Lancaster University] (ORCID:000000022382362X), Bogart, B. [University of Michigan] (ORCID:0000000305588934), Bolton, T. [Kansas State University (KSU)] (ORCID:0000000170833217), Brunetti, M. B. [University of Warwick] (ORCID:0000000316393577), Camilleri, L. [Columbia University] (ORCID:0000000194098720), Caratelli, D. [University of California] (ORCID:0000000217616595), Cavanna, F. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000255869964), Cerati, G. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000335480262), Chappell, A. [University of Warwick] (ORCID:0000000210446239), Chen, Y. [SLAC National Accelerator Laboratory] (ORCID:0000000227429718), Conrad, J. M. [Massachusetts Institute of Technology (MIT)] (ORCID:0000000263930438), Convery, M. [SLAC National Accelerator Laboratory] (ORCID:0000000168249257), Cooper-Troendle, L. [University of Pittsburgh] (ORCID:0000000332122603), Crespo-Anadón, J. I. [Medioambientales y Tecnológicas (CIEMAT)] (ORCID:0000000232607072), Cross, R. [University of Warwick] (ORCID:0000000196945735), Del Tutto, M. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000215887025), Dennis, S. R. [University of Cambridge] (ORCID:0000000190998895), Detje, P. [University of Cambridge] (ORCID:0000000258830053), Diurba, R. [Universität Bern] (ORCID:0000000282286377), Djurcic, Z. [Argonne National Laboratory (ANL)] (ORCID:000000025472216X), Duffy, K. [University of Oxford] (ORCID:0000000278725445), Dytman, S. [University of Pittsburgh] (ORCID:0000000282785299), Eberly, B. [University of Southern Maine] (ORCID:0000000337211058), Englezos, P. [Rutgers University] (ORCID:0000000180241805), Ereditato, A. [University of Chicago; Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000254238079), Evans, J. J. [The University of Manchester] (ORCID:0000000346973337), Fang, C. [University of California] (ORCID:0009000072597211), Foreman, W. [Illinois Institute of Technology (IIT); Los Alamos National Laboratory (LANL)] (ORCID:0000000165556948), Fleming, B. T. [University of Chicago] (ORCID:0000000198268547), Franco, D. [University of Chicago] (ORCID:0000000312789478), Furmanski, A. P. [University of Minnesota] (ORCID:0000000336087454), Gao, F. [University of California] (ORCID:0000000175393863), Garcia-Gamez, D. [Universidad de Granada] (ORCID:0000000334523478), Gardiner, S. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000283685898), Ge, G. [Columbia University] (ORCID:0000000200467968), Gollapinni, S. [Los Alamos National Laboratory (LANL)] (ORCID:0000000157039625), Gramellini, E. [The University of Manchester] (ORCID:0000000317761941), Green, P. [University of Oxford] (ORCID:0000000198723685), Greenlee, H. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000251091358), Gu, L. [Lancaster University], Gu, W. [Brookhaven National Laboratory (BNL)] (ORCID:0000000164021239), Guenette, R. [The University of Manchester] (ORCID:0000000339670151), Guzowski, P. [The University of Manchester] (ORCID:0000000270330158), Hagaman, L. [University of Chicago] (ORCID:0000000341789565), Handley, M. D. [University of Cambridge] (ORCID:0009000510526924), Hen, O. [Massachusetts Institute of Technology (MIT)] (ORCID:0000000248906544), Hilgenberg, C. [University of Minnesota] (ORCID:000000017847487X), Horton-Smith, G. A. [Kansas State University (KSU)] (ORCID:0000000196779167), Hussain, A. [Kansas State University (KSU)] (ORCID:0000000162169002), Irwin, B. [University of Minnesota], Ismail, M. S. [University of Pittsburgh] (ORCID:0009000092347965), James, C. [Fermi National Accelerator Laboratory (FNAL)], Ji, X. [Nankai University] (ORCID:0000000205798467), Jo, Jay H. [Brookhaven National Laboratory (BNL)] (ORCID:0000000341023674), Johnson, R. A. [University of Cincinnati] (ORCID:0000000288166317), Kalra, D. [Columbia University] (ORCID:0000000261243941), Karagiorgi, G. [Columbia University] (ORCID:0000000178107236), Ketchum, W. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000261794874), Kirby, M. [Brookhaven National Laboratory (BNL)] (ORCID:0000000252346308), Kobilarcik, T. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:0000000150471036), Lane, N. [Imperial College London; The University of Manchester] (ORCID:0009000512458574), Li, J.-Y. [University of Edinburgh] (ORCID:0000000340255377), Li, Y. [Brookhaven National Laboratory (BNL)] (ORCID:0000000270047598), Lin, K. [Rutgers University] (ORCID:0000000344428554), Littlejohn, B. R. [Illinois Institute of Technology (IIT)] (ORCID:0000000269129684), Liu, L. [Fermi National Accelerator Laboratory (FNAL)] (ORCID:000000026753925X), Louis, W. C. [Los Alamos National Laboratory (LANL)] (ORCID:0000000275793709), Luo, X. [University of California] (ORCID:0000000164646992), Mahmud, T. [Lancaster University] (ORCID:0009000937303148), Mariani, C. [Virginia Tech] (ORCID:0000000332844681), Marsden, D. [The University of Manchester], Marshall, J. [University of Warwick] (ORCID:0000000235657008), Martinez, N. [Kansas State University (KSU)], Martinez Caicedo, D. A. [South Dakota School of Mines and Technology (SDSMT)] (ORCID:0000000182708907), Martynenko, S. [Brookhaven National Laboratory (BNL)] (ORCID:0000000252022784), Mastbaum, A. [Rutgers University] (ORCID:0000000211322270), Mawby, I. [Lancaster University] (ORCID:0000000280552635), McConkey, N. [Queen Mary University of London] (ORCID:0000000203853098), Mellet, L. [Michigan State University] (ORCID:0000000341827381), Mendez, J. [Louisiana State University], Micallef, J. [Massachusetts Institute of Technology (MIT); Tufts University] (ORCID:0000000172599575), Mogan, A. [Colorado State University] (ORCID:0000000281935902). 2026-05-07. Inclusive Search for Anomalous Single-Photon Production in MicroBooNE. https://doi.org/10.1103/89qs-4lcp
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