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James, C. Mariani, C. Rudolph von Rohr, C.Thorpe, C. Zhang, D.A. Martinez Caicedo, D. Andrade Aldana, D. Barrow, D. Caratelli, D. Franco, D. Garcia-Gamez, D. Kalra, D. Marsden, D. Naples, D. Torbunov, D. Totani, D.W. Schmitz, E. Gramellini, E.L. Snider, E. Piasetzky, E. Yandel, F. Cavanna, F. Gao, G.A. Horton-Smith, G. Barr, G. Cerati, G. Ge, G. Karagiorgi, G.P. Zeller, G. Scanavini, H. Greenlee, H. Liu, H. Parkinson, H. Wei, H.W. Yu, I. Kreslo, I. Lepetic, I. Mawby, I. Pophale, I. Safa, J. Asaadi, J. Barrow, J.H. Jo, J.I. Crespo-Anadon, J.J. Evans, J.L. Raaf, J. Marshall, J.M. Conrad, J. Micallef, J. Nowak, J. Rodriguez Rondon, J. Shi, J. Spitz, J. St. John, J. Tyler, J.Y. Book, J.-Y. Li, J. Zennamo, K. Duffy, K. Li, K. Lin, K. Miller, K. Mistry, K. Terao, K. Wresilo, L. Arellano, L. Camilleri, L. Cooper-Troendle, L.E. Yates, L. Gu, L. Hagaman, L. Mora Lepin, L. Ren, L. Rochester, M.A. Uchida, M.B. Brunetti, M. Bhattacharya, M. Bishai, M. B. Leibovitch, M. Convery, M. Del Tutto, M.H. Shaevitz, MicroBooNE collaboration: P. Abratenko, M. Ismail, M. Kirby, M.M. Moudgalya, M. Mooney, M. Nebot-Guinot, M. Reggiani-Guzzo, M. Rosenberg, M. Ross-Lonergan, M. Soderberg, M. Stancari, M. Toups, M. Weber, M. Wospakrik, N. Kamp, N. Martinez, N. McConkey, N. Nayak, N. Oza, N. Pallat, N. Patel, N. Taniuchi, O. Alterkait, O. Benevides Rodrigues, O.G. Finnerud, O. Hen, O. Palamara, P. Detje, P. Englezos, P. Green, P. Guzowski, R.A. Johnson, R. Cross, R. Diurba, R. Dorrill, R. Fine, R. Guenette, R. Sharankova, S. Balasubramanian, S. Berkman, S. Dytman, S.F. Pate, S. Gardiner, S. Gollapinni, S. Martynenko, S. Mulleria Babu, S.R. Dennis, S. Soldner-Rembold, S. Wolbers, T. Bolton, T. Kobilarcik, T. Mohayai, T. Strauss, T. Usher, T. Wongjirad, T. Yang, V. Basque, V. Meddage, V. Paolone, V. Papavassiliou, V. Radeka, W.C. Louis, W. Foreman, W. Gu, W. Ketchum, W. Seligman, W. Tang, W. Wu, X. Ji, X. Luo, X. Qian, Y. Cao, Y. Chen, Y.J. Jwa, Y. Li, Y.-T. Tsai, Z. Djurcic, Z. Imani, Z. Pavlovic","submitted_at":"2023-10-11T17:00:41Z","abstract_excerpt":"We present the first search for heavy neutral leptons (HNL) decaying into $\\nu e^+e^-$ or $\\nu\\pi^0$ final states in a liquid-argon time projection chamber using data collected with the MicroBooNE detector. The data were recorded synchronously with the NuMI neutrino beam from Fermilab's Main Injector corresponding to a total exposure of $7.01 \\times 10^{20}$ protons on target. 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Ashkenazi, A. Bhanderi, A. Bhat, A. Blake, A. Chappell, A. Devitt, A. Ereditato, A.F. Moor, A.J. White, A. Mastbaum, A. Mogan, A.M. Szelc, A. Navrer-Agasson, A. Papadopoulou, A.P. Furmanski, A. Rafique, A. Schukraft, B. Baller, B. Bogart, B. Eberly, B. Irwin, B.R. Littlejohn, B.T. Fleming, B. Viren, C.D. Moore, C. Hilgenberg, C. James, C. Mariani, C. Rudolph von Rohr, C.Thorpe, C. Zhang, D.A. Martinez Caicedo, D. Andrade Aldana, D. Barrow, D. Caratelli, D. Franco, D. Garcia-Gamez, D. Kalra, D. Marsden, D. Naples, D. Torbunov, D. Totani, D.W. Schmitz, E. Gramellini, E.L. Snider, E. Piasetzky, E. Yandel, F. Cavanna, F. Gao, G.A. Horton-Smith, G. Barr, G. Cerati, G. Ge, G. Karagiorgi, G.P. Zeller, G. Scanavini, H. Greenlee, H. Liu, H. Parkinson, H. Wei, H.W. Yu, I. Kreslo, I. Lepetic, I. Mawby, I. Pophale, I. Safa, J. Asaadi, J. Barrow, J.H. Jo, J.I. Crespo-Anadon, J.J. Evans, J.L. Raaf, J. Marshall, J.M. Conrad, J. Micallef, J. Nowak, J. Rodriguez Rondon, J. Shi, J. Spitz, J. St. John, J. Tyler, J.Y. Book, J.-Y. Li, J. Zennamo, K. Duffy, K. Li, K. Lin, K. Miller, K. Mistry, K. Terao, K. Wresilo, L. Arellano, L. Camilleri, L. Cooper-Troendle, L.E. Yates, L. Gu, L. Hagaman, L. Mora Lepin, L. Ren, L. Rochester, M.A. Uchida, M.B. Brunetti, M. Bhattacharya, M. Bishai, M. B. Leibovitch, M. Convery, M. Del Tutto, M.H. Shaevitz, MicroBooNE collaboration: P. Abratenko, M. Ismail, M. Kirby, M.M. Moudgalya, M. Mooney, M. Nebot-Guinot, M. Reggiani-Guzzo, M. Rosenberg, M. Ross-Lonergan, M. Soderberg, M. Stancari, M. Toups, M. Weber, M. Wospakrik, N. Kamp, N. Martinez, N. McConkey, N. Nayak, N. Oza, N. Pallat, N. Patel, N. Taniuchi, O. Alterkait, O. Benevides Rodrigues, O.G. Finnerud, O. Hen, O. Palamara, P. Detje, P. Englezos, P. Green, P. Guzowski, R.A. Johnson, R. Cross, R. Diurba, R. Dorrill, R. Fine, R. Guenette, R. Sharankova, S. Balasubramanian, S. Berkman, S. Dytman, S.F. Pate, S. Gardiner, S. Gollapinni, S. Martynenko, S. Mulleria Babu, S.R. Dennis, S. Soldner-Rembold, S. Wolbers, T. Bolton, T. Kobilarcik, T. Mohayai, T. Strauss, T. Usher, T. Wongjirad, T. Yang, V. Basque, V. Meddage, V. Paolone, V. Papavassiliou, V. Radeka, W.C. Louis, W. Foreman, W. Gu, W. Ketchum, W. Seligman, W. Tang, W. Wu, X. Ji, X. Luo, X. Qian, Y. Cao, Y. Chen, Y.J. Jwa, Y. Li, Y.-T. Tsai, Z. Djurcic, Z. Imani, Z. Pavlovic","submitted_at":"2023-10-11T17:00:41Z","abstract_excerpt":"We present the first search for heavy neutral leptons (HNL) decaying into $\\nu e^+e^-$ or $\\nu\\pi^0$ final states in a liquid-argon time projection chamber using data collected with the MicroBooNE detector. The data were recorded synchronously with the NuMI neutrino beam from Fermilab's Main Injector corresponding to a total exposure of $7.01 \\times 10^{20}$ protons on target. 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