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  • Measurement of neutral current single $\pi^0$ production on argon with the MicroBooNE detector
    MicroBooNE collaboration; Abratenko, P; Anthony, J; Asaadi, J; Barnes, C; Barr, G; Rodrigues, O. Benevides; Berkman, S; Bhat, A; Bishai, M; Blake, A; Camilleri, L; Cavanna, F; Cerati, G; Convery, M; Cooper-Troendle, L; Crespo-Anadon, J. I; Detje, P; Diurba, R; Duffy, K; Dytman, S; Eberly, B; Ereditato, A; Evans, J. J; Aguirre, G. A. Fiorentini; Franco, D; Furmanski, A. P; Ge, G; Gollapinni, S; Goodwin, O; Gu, W; Hagaman, L; Hilgenberg, C; Horton-Smith, G. A; James, C; Johnson, R. A; Kalra, D; Ketchum, W; Kirby, M; Kobilarcik, T; Kreslo, I; Lepetic, I; Li, J. -Y; Li, K; Louis, W. C; Luo, X; Manivannan, K; Marsden, D; Marshall, J; Mason, K; Mastbaum, A; Mettler, T; Miller, K; Mills, J; Mistry, K; Mogan, A; Mooney, M; Moor, A. F; Lepin, L. Mora; Mousseau, J; Navrer-Agasson, A; Nayak, N; Nebot-Guinot, M; Neely, R. K; Oza, N; Paolone, V; Papadopoulou, A; Papavassiliou, V; Patel, N; Paudel, A; Prince, S; Reggiani-Guzzo, M; Rice, L. C. J; Ross-Lonergan, M; Schmitz, D. W; Shaevitz, M. H; Sharankova, R; Sinclair, J; Snider, E. L; Soderberg, M; John, J. St; Strauss, T; Sword-Fehlberg, S; Taniuchi, N; Terao, K; Thorpe, C; Totani, D; Toups, M; Tsai, Y. -T; Uchida, M. A; Weber, M; Williams, Z; Wolbers, S; Wongjirad, T; Wospakrik, M; Wu, W; Yang, T; Yarbrough, G; Zeller, G. P; Zennamo, J

    05/2022
    Journal Article

    We report the first measurement of $\pi^0$ production in neutral current (NC) interactions on argon with average neutrino energy of $\lesssim1$~GeV. We use data from the MicroBooNE detector's 85-tonne active volume liquid argon time projection chamber situated in Fermilab's Booster Neutrino Beam and exposed to $5.89\times10^{20}$ protons on target for this measurement. Measurements of NC $\pi^0$ events are reported for two exclusive event topologies without charged pions. Those include a topology with two photons from the decay of the $\pi^0$ and one proton and a topology with two photons and zero protons. Flux-averaged cross-sections for each exclusive topology and for their semi-inclusive combination are extracted (efficiency-correcting for two-plus proton final states), and the results are compared to predictions from the \textsc{genie}, \textsc{neut}, and \textsc{NuWro} neutrino event generators. We measure cross sections of $1.243\pm0.185$ (syst) $\pm0.076$ (stat), $0.444\pm0.098\pm0.047$, and $0.624\pm0.131\pm0.075$ $10^{-38}\textrm{cm}^2/\textrm{Ar}$ for the semi-inclusive NC$\pi^0$, exclusive NC$\pi^0$+1p, and exclusive NC$\pi^0$+0p processes, respectively.

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