Signal selection and model-independent extraction of the neutrino neutral-current single π⁺ cross section with the T2K experiment

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Abe, K, Abe, S, Akutsu, R, Alarakia-Charles, H, Hakim, YI Alj, Monsalve, S Alonso, Anthony, L, Aoki, S, Apte, KA, Arai, T et al (show 372 more authors) , Arihara, T, Arimoto, S, Ashida, Y, Atkin, ET, Babu, N, Baranov, V, Barker, GJ, Barr, G, Barrow, D, Bates, P, Bathe-Peters, L, Batkiewicz-Kwasniak, M, Baudis, N, Berardi, V, Berns, L, Bhattacharjee, S, Blanchet, A, Blondel, A, Bolognesi, S, Bordoni, S, Boyd, SB, Bronner, C, Bubak, A, Avanzini, M Buizza, Caballero, JA, Cadoux, F, Calabria, NF, Cao, S, Cap, S, Carabadjac, D, Cartwright, SL, Casado, MP, Catanesi, MG, Chakrani, J, Chalumeau, A, Chvirova, A, Collazuol, G, Cormier, F, Craplet, AAL, Cudd, A, D'ago, D, Dalmazzone, C, Daret, T, Dasgupta, P, Davis, C, Davydov, Yu I, De Rosa, G, Dealtry, T, Densham, C, Dergacheva, A, Banerjee, R Dharmapal, Di Lodovico, F, Lopez, G Diaz, Dolan, S, Douqa, D, Doyle, TA, Drapier, O, Duffy, KE, Dumarchez, J, Dunne, P, Dygnarowicz, K, Eguchi, A, Elias, J, Emery-Schrenk, S, Erofeev, G, Ershova, A, Eurin, G, Fedorova, D, Fedotov, S, Feltre, M, Feng, L, Ferlewicz, D, Finch, AJ, Fitton, MD, Forza, C, Friend, M, Fujii, Y, Fukuda, Y, Furui, Y, Garcia-Marcos, J, Germer, AC, Giannessi, L, Giganti, C, Glagolev, V, Gonin, M, Gonzalez Jimenez, R, Gonzalez Rosa, J, Goodman, EAG, Gorshanov, K, Govindaraj, P, Grassi, M, Guigue, M, Guo, FY, Hadley, DR, Han, S, Harris, DA, Harris, RJ, Hasegawa, T, Hasnip, CM, Hassani, S, Hastings, NC, Hayato, Y, Heitkamp, I, Henaff, D, Hino, Y, Holeczek, J, Holin, A, Holvey, T, Van, NT Hong, Honjo, T, Hooft, MCF, Hosokawa, K, Hu, J, Ichikawa, AK, Ieki, K, Ikeda, M, Ishida, T, Ishitsuka, M, Izmaylov, A, Jachowicz, N, Jenkins, SJ, Jesus-Valls, C, Jia, M, Jiang, JJ, Ji, JY, Jones, TP, Jonsson, P, Joshi, S, Kabirnezhad, M, Kaboth, AC, Kakuno, H, Kameda, J, Karpova, S, Kasturi, VS, Kataoka, Y, Katori, T, Kawamura, Y, Kawaue, M, Kearns, E, Khabibullin, M, Khotjantsev, A, Kikawa, T, King, S, Kiseeva, V, Kisiel, J, Klustova, A, Kneale, L, Kobayashi, H, Koch, L, Kodama, S, Kolupanova, M, Konaka, A, Kormos, LL, Koshio, Y, Kowalik, K, Kudenko, Y, Kudo, Y, Jha, A Kumar, Kurjata, R, Kurochka, V, Kutter, T, Labarga, L, Lachat, M, Lachner, K, Lagoda, J, Lakshmi, SM, James, M Lamers, Langella, A, Langridge, DH, Laporte, J-F, Last, D, Latham, N, Laveder, M, Lawe, M, Silverio, D Leon, Levorato, S, Lewis, SV, Li, B, Lin, C, Litchfield, RP, Liu, SL, Li, W, Longhin, A, Moreno, A Lopez, Ludovici, L, Lu, X, Lux, T, Machado, LN, Magaletti, L, Mahn, K, Mahtani, KK, Mandal, M, Manly, S, Marino, AD, Martin, DGR, Caicedo, DA Martinez, Martinez, L, Martini, M, Matsubara, T, Matsumoto, R, Matveev, V, Mauger, C, Mavrokoridis, K ORCID: 0000-0002-9244-4519, McCauley, N ORCID: 0000-0002-5982-5125, McFarland, KS, McKean, J, Mefodiev, A, Megias, GD, Mellet, L, Mezzetto, M, Miki, S, Mikola, V, Miller, EW, Minamino, A, Mineev, O, Mine, S, Mirabito, J, Miura, M, Moriyama, S, Moriyama, S, Morrison, P, Mueller, Th A, Munford, D, Munoz, A, Munteanu, L, Nagai, Y, Nakadaira, T, Nakagiri, K, Nakahata, M, Nakajima, Y, Nakamura, KD, Nakano, Y, Nakayama, S, Nakaya, T, Nakayoshi, K, Naseby, CER, Nguyen, DT, Nguyen, VQ, Niewczas, K, Nishimori, S, Nishimura, Y, Noguchi, Y, Nosek, T, Nova, F, Nugent, JC, O'Keeffe, HM, O'Sullivan, L, Okazaki, R, Okinaga, W, Okumura, K, Okusawa, T, Onda, N, Ospina, N, Osu, L, Oyama, Y, Paolone, V, Pasternak, J, Pfaff, M, Pickering, L, Popov, B, Yrey, AJ Portocarrero, Posiadala-Zezula, M, Prabhu, YS, Prasad, H, Pupilli, F, Quilain, B, Quyen, PT, Radicioni, E, Radics, B, Ramirez, MA, Ramsden, R, Ratoff, PN, Reh, M, Reina, G, Riccio, C, Riley, DW, Rondio, E, Roth, S, Roy, N, Rubbia, A, Russo, L, Rychter, A, Saenz, W, Sakashita, K, Sanchez, F, Sandford, EM ORCID: 0000-0002-0245-8619, Sato, Y, Schefke, T, Schloesser, CM, Scholberg, K, Scott, M, Seiya, Y, Sekiguchi, T, Sekiya, H, Sekiya, T, Seppala, D, Sgalaberna, D, Shaikhiev, A, Shiozawa, M, Shiraishi, Y, Shvartsman, A, Skrobova, N, Skwarczynski, K, Smyczek, D, Smy, M, Sobczyk, JT, Sobel, H, Soler, FJP, Speers, AJ, Spina, R, Srivastava, A, Stowell, P, Stroke, Y, Suslov, IA, Suzuki, A, Suzuki, SY, Tada, M, Tairafune, S, Takeda, A, Takeuchi, Y, Tanaka, HK, Tanigawa, H, Tereshchenko, VV, Thamm, N, Tran, N, Tsukamoto, T, Tzanov, M, Uchida, Y, Vagins, M, Varghese, M, Vasilyev, I, Vasseur, G, Villa, E, Virginet, U, Vladisavljevic, T, Wachala, T, Wakabayashi, D, Wallace, HT, Walsh, JG, Wan, L, Wark, D, Wascko, MO, Weber, A, Wendell, R, Wilking, MJ, Wilkinson, C, Wilson, JR, Wood, K, Wret, C, Xia, J, Yamamoto, K, Yamamoto, T, Yang, Y, Yano, T, Yershov, N, Yevarouskaya, U, Yokoyama, M, Yoshimoto, Y, Yoshimura, N, Zaki, R, Zalewska, A, Zalipska, J, Zarnecki, G, Zhang, J, Zhao, XY, Zheng, H, Zhong, H, Zhu, T, Ziembicki, M, Zimmerman, ED, Zito, M and Zsoldos, S (2025) Signal selection and model-independent extraction of the neutrino neutral-current single π⁺ cross section with the T2K experiment PHYSICAL REVIEW D, 112 (7). 072008-072008-17-. ISSN 2470-0010, 2470-0029

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Abstract

This article presents a study of single π⁺ production in neutrino neutral-current interactions (NC1π⁺) using the FGD1 hydrocarbon target of the ND280 detector of the T2K experiment. We report the largest sample of such events selected by any experiment, providing the first new data for this channel in over four decades and the first using a sub-GeV neutrino flux. The signal selection strategy and its performance are detailed together with validations of a robust cross section extraction methodology. The measured fluxaveraged integrated cross-section is σ = (6.07 ± 1.22) × 10⁻⁴¹ cm²/nucleon, 1.3σ above the NEUT v5.4.0 expectation.

Item Type:	Article
Uncontrolled Keywords:	5107 Particle and High Energy Physics, 5101 Astronomical Sciences, 51 Physical Sciences
Divisions:	Faculty of Science & Engineering Faculty of Science & Engineering > School of Physical Sciences Faculty of Science & Engineering > School of Physical Sciences > Physics
Depositing User:	Symplectic Admin
Date Deposited:	29 Oct 2025 11:34
Last Modified:	16 Jun 2026 07:12
DOI:	10.1103/wcn1-4tyl
Open Access URL:	https://journals.aps.org/prd/abstract/10.1103/wcn1...
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3195069
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