Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector

We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total e...

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Published in:arXiv.org 2022-12
Main Authors: collaboration, MicroBooNE, Abratenko, P, Arellano, L, Barnes, C, Barr, G, Bathe-Peters, L, Berkman, S, Bhattacharya, M, Bolton, T, Camilleri, L, Caratelli, D, I Caro Terrazas, Cavanna, F, Cerati, G, Conrad, J M, Convery, M, M Del Tutto, Dennis, S R, Devitt, A, Duffy, K, Dytman, S, Eberly, B, Evans, J J, Garcia-Gamez, D, Gardiner, S, G Ge, Gollapinni, S, Green, P, Greenlee, H, W Gu, Hen, O, Hicks, R, Hilgenberg, C, Horton-Smith, G A, Jiang, L, Johnson, R A, Jwa, Y J, Karagiorgi, G, Ketchum, W, Kirby, M, Kobilarcik, T, Kreslo, I, Leibovitch, M B, Lepetic, I, J -Y Li, K Li, Luo, X, Mariani, C, Martinez Caicedo, D A, Mason, K, Mastbaum, A, Meddage, V, Miller, K, Mills, J, Mohayai, T, Mogan, A, L Mora Lepin, Naples, D, Nayak, N, Nowak, J, Nunes, M, Oza, N, Palamara, O, Paolone, V, Parkinson, H, Piasetzky, E, Prince, S, Raaf, J L, Rochester, L, J Rodriguez Rondon, Rosenberg, M, Ross-Lonergan, M, Rudolph von Rohr, C, Schmitz, D W, Schukraft, A, Seligman, W, Shaevitz, M H, Sharankova, R, Shi, J, Soderberg, M, Spitz, J, Stancari, M, Strauss, T, Sword-Fehlberg, S, Szelc, A M, Tang, W, Terao, K, Torbunov, D, Totani, D, Y -T Tsai, Wei, H, Williams, Z, Wongjirad, T, Wospakrik, M, Wright, N, W Wu, Yandel, E, Yates, L E, Zeller, G P, Zennamo, J
Format: Article
Language:English
Subjects:
Argon
Confidence intervals
Decay
Leptons
Lower bounds
Neutrino beams
Neutrinos
Parameters
Radiation counters
Scalars
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Summary:We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total exposure corresponding to \(7.01 \times 10^{20}\) protons on target. We set upper limits at the \(90\%\) confidence level on the mixing parameter \(\lvert U_{\mu 4}\rvert^2\) ranging from \(\lvert U_{\mu 4}\rvert^2
ISSN:2331-8422
DOI:10.48550/arxiv.2207.03840