Authors
K Abe, E Mazzucato, K Hosokawa, S Jung, W Saenz, H Kakuno, Y Yoshioka, HM O'Keeffe, A Zalewska, S Joshi, J Holeczek, SH Lee, AT Suzuki, T Daret, T Maruyama, P Dunne, S Aoki, M Reh, H Ishino, F Sánchez, M Ikeda, C Densham, MO Wascko, P Mehta, M Laveder, X Wang, H Sobel, S Horiuchi, R Kaneshima, N Babu, A Tarrant, LF Thompson, S Nakayama, H Alarakia-Charles, H Ito, T Nakaya, N Akhlaq, L Magaletti, J-F Laporte, S Mine, A De Roeck, D Last, M Shiozawa, S Zsoldos, A Goldsack, K Takifuji, R Dharmapal, S Manly, A Beauchêne, M Kawaue, K Kowalik, W Okinaga, S Dolan, M Yokoyama, AJ Finch, L Anthony, K Nishijima, C Giganti, S Kuribayashi, T Tano, M Friend, P de Perio, J Elias, M Scott, A Bubak, S Hassani, ED Zimmerman, M Gonin, A Bravar, A Khotjantsev, S Karpova, V Gousy-Leblanc, AJ Yrey, A Dergacheva, Y Nagai, L Mellet, F Nova, V Paolone, K Shimizu, D Sgalaberna, W Li, Z Xie, AK Ichikawa, Y Nishimura, BW Pointon, D Wark, MJ Wilking, S Arimoto, PT Quyen, L Wan, WGS Vinning, A Ershova, ET Atkin, T Yoshida, C Davis, R Shimamura, X Li, H Prasad, K Porwit, M Lamers James, Y Hayato, R Rogly, J Yoo, AC Kaboth, T Kikawa, M Vagins, S Emery-Schrenk, G Barr, Y Oyama, S Miki, A Rubbia, K Skwarczynski, Y Lee, G Erofeev, A Nakamura, B Popov, M Zito, AD Santos, MD Fitton, L Lavitola, C Fujisawa, V Matveev, YS Prabhu, K Nagai, S Suvorov, J Gao, M Jia, G Diaz Lopez, D Douqa, SB Boyd, J Lagoda, Y Yoshimoto, S Bordoni, C Dalmazzone, T Nakadaira, T Arai, VQ Nguyen, BS Yang, S Chen, RP Litchfield, J Dumarchez, D Carabadjac, V Berardi, FJP Soler, DGR Martin, A Blanchet, T Holvey, J Kameda, SJ Jenkins, A Ali
Publication date
2024/5/21
Issue
arXiv: 2405.12488
Description
The Super-Kamiokande and T2K collaborations present a joint measurement of neutrino oscillation parameters from their atmospheric and beam neutrino data. It uses a common interaction model for events overlapping in neutrino energy and correlated detector systematic uncertainties between the two datasets, which are found to be compatible. Using 3244.4 days of atmospheric data and a beam exposure of 19.7 (16.3)× 1020 protons on target in (anti) neutrino mode, the analysis finds a 1.9 σ exclusion of CP-conservation (defined as JCP= 0) and a preference for the normal mass ordering.
Introduction—Following the observation of neutrino oscillations [1], experiments now aim to fully characterize the three-flavor mixing paradigm described by the Pontecorvo–Maki–Nakagawa–Sakata matrix. Here, neutrino mixing is governed by three mixing angles (θ13, θ23, and θ12), two mass splittings (∆ m2
32 and∆ m2 21), and one Charge Parity (CP) violating phase (δCP). While some oscillation parameters have been precisely measured [2], others remain relatively unconstrained. In particular, the CP-violating phase, the ordering of the neutrino mass states (MO), and the octant of θ23 have not been de-∗ also at BMCC/CUNY, Science Department, New York, New
Scholar articles
K Abe, E Mazzucato, K Hosokawa, S Jung, W Saenz… - 2024