Accès ouvert déclaré
2022
preprint
First measurement of quasi-elastic $Λ$ baryon production in muon anti-neutrino interactions in the MicroBooNE detector
MicroBooNE collaboration, P. Abratenko, D. Andrade Aldana, J. Anthony, L. Arellano, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, G. Barr, J. Barrow, V. Basque, O. Benevides Rodrigues, S. Berkman, A. Bhanderi, M. Bishai, A. Blake, B. Bogart, T. Bolton, J. Y. Book, L. Camilleri, D. Caratelli, I. Terrazas, F. Cavanna, G. Cerati, Y. Chen, J. M. Conrad, M. Convery, L. Cooper-Troendle, J. I. Crespo-Anadón, A. Devitt, R. Diurba, R. Dorrill, K. Duffy, S. Dytman, B. Eberly, A. Ereditato, J. J. Evans, R. Fine, O. G. Finnerud, B. T. Fleming, N. Foppiani, W. Foreman, D. Franco, A. P. Furmanski, D. Garcia-Gamez, S. Gardiner, G. Ge, S. Gollapinni, O. Goodwin, E. Gramellini, P. Green, H. Greenlee, W. Gu, R. Guenette, P. Guzowski, L. Hagaman, O. Hen, R. Hicks, C. Hilgenberg, G. A. Horton-Smith, B. Irwin, R. Itay, C. James, X. Ji, L. Jiang, J. H. Jo, R. A. Johnson, Y. J. Jwa, D. Kalra, N. Kamp, G. Karagiorgi, W. Ketchum, M. Kirby, T. Kobilarcik, I. Kreslo, M. B. Leibovitch, I. Lepetic, J. -Y. Li, K. Li, Y. Li, K. Lin, B. R. Littlejohn, W. C. Louis, X. Luo, C. Mariani, D. Marsden, J. Marshall, N. Martinez, D. A. Martínez Caicedo, K. Mason, A. Mastbaum, N. McConkey, V. Meddage, K. Miller, J. Mills, K. Mistry, T. Mohayai, A. Mogan, M. Mooney, A. F. Moor, L. Mora Lepin, J. Mousseau, S. Mulleria Babu, D. Naples, A. Navrer-Agasson, N. Nayak, M. Nebot-Guinot, J. Nowak, M. Nunes, N. Oza, O. Palamara, N. Pallat, V. Paolone, A. Papadopoulou, V. Papavassiliou, H. Parkinson, S. F. Pate, N. Patel, Z. Pavlovic, E. Piasetzky, I. Ponce-Pinto, I. Pophale, S. Prince, X. Qian, J. L. Raaf, V. Radeka, A. Rafique, L. Ren, L. Rochester, J. Rodriguez Rondon, M. Rosenberg, M. Ross-Lonergan, C. Rudolph von Rohr, G. Scanavini, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, R. Sharankova, Jingyuan Shi, E. L. Snider, M. Söderberg, S. Söldner‐Rembold, J. Spitz, M. Stancari, J. St. John, T. Strauss, S. Sword-Fehlberg, A. M. Szelc, W. Tang, N. Taniuchi, K. Terao, C. Thorpe, D. Torbunov, D. Totani, M. Toups, Y. -T. Tsai, J. Tyler, M. A. Uchida, T. Usher, B. Viren, M. Weber, H. Wei, A. J. White, Z. Williams, S. Wolbers, T. Wongjirad, M. Wospakrik, K. Wresilo, N. Wright, W. Wu, E. Yandel, T. Yang, L. E. Yates, H. W. Yu, G. P. Zeller, J. Zennamo, C. Zhang
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Le résumé fourni par la source
We present the first measurement of the cross section of Cabibbo-suppressed $Λ$ baryon production, using data collected with the MicroBooNE detector when exposed to the neutrinos from the Main Injector beam at the Fermi National Accelerator Laboratory. The data analyzed correspond to $2.2 \times 10^{20}$ protons on target of neutrino mode running and $4.9 \times 10^{20}$ protons on target of anti-neutrino mode running. An automated selection is combined with hand scanning, with the former identifying five candidate $Λ$ production events when the signal was unblinded, consistent with the GENIE prediction of $5.3 \pm 1.1$ events. Several scanners were employed, selecting between three and five events, compared with a prediction from a blinded Monte Carlo simulation study of $3.7 \pm 1.0$ events. Restricting the phase space to only include $Λ$ baryons that decay above MicroBooNE's detection thresholds, we obtain a flux averaged cross section of $2.0^{+2.2}_{-1.7} \times 10^{-40}$ cm$^2/$Ar, where statistical and systematic uncertainties are combined.
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Les sujets associés
Particle physics theoretical and experimental studiesNeutrino Physics ResearchParticle accelerators and beam dynamics