First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions using an accelerator neutrino beam
First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions using an accelerator neutrino beam
We report the first measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions at the gadolinium-loaded Super-Kamiokande detector using the T2K neutrino beam, which has a peak energy of about 0.6 GeV. A total of 30 neutral-current quasi-elastic-like event candidates were selected from T2K data corresponding to an exposure of $1.76\times10^{20}$ protons on target. The $\gamma$ ray signals resulting from neutron captures were identified using a neural network. The flux-averaged mean neutron capture multiplicity was measured to be $1.37\pm0.33\text{ (stat.)}$$^{+0.17}_{-0.27}\text{ (syst.)}$, which is compatible within $2.3\,\sigma$ than predictions obtained using our nominal simulation. We discuss potential sources of systematic uncertainty in the prediction and demonstrate that a significant portion of this discrepancy arises from the modeling of hadron-nucleus interactions in the detector medium.
R. Wendell、M. J. Wilking、C. Yanagisawa、T. Yano、N. Yershov、U. Yevarouskaya、M. Yokoyama、R. Zaki、J. Zhang、J. Kameda、S. Karpova、V. S. Kasturi、Y. Kataoka、T. Katori、Y. Kawamura、M. Kawaue、E. Kearns、M. Khabibullin、T. Kikawa、S. King、V. Kiseeva、J. Kisiel、L. Kneale、H. Kobayashi、L. Koch、S. Kodama、M. Kolupanova、A. Konaka、L. L. Kormos、Y. Koshio、T. Koto、K. Kowalik、Y. Kudo、R. Kurjata、V. Kurochka、M. Kuze、M. La Commara、L. Labarga、M. Lachat、K. Lachner、J. Lagoda、S. M. Lakshmi、M. Lamers James、A. Langella、J. -F. Laporte、L. Lavitola、M. Lawe、Y. Lee、D. Leon Silverio、S. Levorato、S. V. Lewis、C. Lin、S. L. Liu、W. Li、A. Longhin、K. R. Long、A. Lopez Moreno、L. Ludovici、X. Lu、L. Magaletti、K. Mahn、K. K. Mahtani、M. Mandal、D. G. R. Martin、M. Martini、N. McCauley、J. McKean、L. Mellet、T. Lux、S. Manly、A. D. Marino、T. Matsubara、R. Matsumoto、V. Matveev、C. Mauger、K. Mavrokoridis、A. Mefodiev、P. Mehta、S. Miki、E. W. Miller、A. Minamino、S. Mine、J. Mirabito、M. Miura、S. Moriyama、S. Moriyama、P. Morrison、Th. A. Mueller、Y. Nakajima、D. Munford、A. Mu?oz、L. Munteanu、Y. Nagai、T. Nakadaira、K. Nakagiri、M. Nakahata、Y. Nakano、S. Nakayama、S. Nishimori、Y. Nishimura、Y. Noguchi、T. Nosek、P. Novella、J. C. Nugent、H. M. O'Keeffe、L. O'Sullivan、R. Okazaki、K. Okumura、T. Okusawa、N. Onda、L. Osu、W. Okinaga、T2K Collaboration、K. Abe、S. Abe、R. Akutsu、H. Alarakia-Charles、Y. I. Alj Hakim、S. Alonso Monsalve、L. Anthony、M. Antonova、N. Ospina、Y. Oyama、C. M. Schloesser、V. Paolone、J. Pasternak、M. Pfaff、L. Pickering、B. Popov、A. J. Portocarrero Yrey、M. Posiadala-Zezula、Y. S. Prabhu、H. Prasad、F. Pupilli、B. Quilain、P. T. Quyen、E. Radicioni、B. Radics、M. A. Ramirez、P. N. Ratoff、M. Reh、C. Riccio、E. Rondio、S. Roth、N. Roy、L. Russo、D. Douqa、T. A. Doyle、O. Drapier、K. E. Duffy、J. Dumarchez、K. Dygnarowicz、A. Eguchi、J. Elias、S. Emery-Schrenk、G. Erofeev、A. Ershova、G. Eurin、D. Fedorova、S. Fedotov、M. Feltre、L. Feng、D. Ferlewicz、A. J. Finch、G. Fiorillo、M. D. Fitton、J. M. Franco Pati?o、M. Friend、Y. Fujii、Y. Fukuda、Y. Furui、L. Giannessi、C. Giganti、V. Glagolev、M. Gonin、J. González Rosa、K. Gorshanov、M. Guigue、D. R. Hadley、J. T. Haigh、S. Han、D. A. Harris、T. Hasegawa、S. Hassani、Y. Hayato、I. Heitkamp、D. Henaff、Y. Hino、M. Hogan、J. Holeczek、A. Holin、T. Holvey、N. T. Hong Van、T. Honjo、K. Hosokawa、J. Hu、A. K. Ichikawa、K. Ieki、M. Ikeda、T. Ishida、M. Ishitsuka、A. Izmaylov、S. J. Jenkins、C. Jesús-Valls、M. Jia、J. J. Jiang、J. Y. Ji、P. Jonsson、S. Joshi、A. C. Kaboth、T. Kajita、H. Kakuno、K. D. Nakamura、T. Nakaya、K. Nakayoshi、C. E. R. Naseby、D. T. Nguyen、V. Q. Nguyen、K. Scholberg、M. Scott、Y. Seiya、T. Sekiguchi、H. Sekiya、D. Sgalaberna、M. Shiozawa、Y. Shiraishi、A. Shvartsman、N. Skrobova、K. Skwarczynski、D. Smyczek、M. Smy、J. T. Sobczyk、H. Sobel、F. J. P. Soler、A. J. Speers、R. Spina、Y. Stroke、I. A. Suslov、A. Suzuki、S. Y. Suzuki、M. Tada、S. Tairafune、A. Takeda、Y. Takeuchi、K. Takifuji、H. K. Tanaka、H. Tanigawa、A. Teklu、V. V. Tereshchenko、N. Thamm、N. Tran、T. Tsukamoto、Y. Uchida、M. Vagins、M. Varghese、E. Villa、U. Virginet、T. Vladisavljevic、T. Wachala、D. Wakabayashi、H. T. Wallace、J. G. Walsh、L. Wan、D. Wark、A. Weber、C. Wilkinson、J. R. Wilson、K. Wood、C. Wret、J. Xia、K. Yamamoto、T. Yamamoto、T. Yamamoto、Y. Yoshimoto、N. Yoshimura、A. Zalewska、J. Zalipska、G. Zarnecki、X. Y. Zhao、H. Zhong、T. Zhu、M. Ziembicki、E. D. Zimmerman、M. Zito、S. Zsoldos、S. Aoki、K. A. Apte、T. Arai、T. Arihara、S. Arimoto、Y. Asada、Y. Ashida、N. Babu、G. Barr、D. Barrow、P. Bates、M. Batkiewicz-Kwasniak、V. Berardi、L. Berns、S. Bordoni、S. B. Boyd、C. Bronner、A. Bubak、M. Buizza Avanzini、J. A. Caballero、N. F. Calabria、S. Cao、D. Carabadjac、S. L. Cartwright、M. P. Casado、M. G. Catanesi、J. Chakrani、A. Chalumeau、P. S. Chong、A. Chvirova、G. Collazuol、F. Cormier、A. Cudd、D. D'ago、C. Dalmazzone、T. Daret、P. Dasgupta、C. Davis、Yu. I. Davydov、A. De Roeck、G. De Rosa、T. Dealtry、C. Densham、A. Dergacheva、R. Dharmapal Banerjee、F. Di Lodovico、G. Diaz Lopez、S. Dolan、A. Rychter、W. Saenz、K. Sakashita、E. M. Sandford、Y. Sato、T. Schefke
物理学
R. Wendell,M. J. Wilking,C. Yanagisawa,T. Yano,N. Yershov,U. Yevarouskaya,M. Yokoyama,R. Zaki,J. Zhang,J. Kameda,S. Karpova,V. S. Kasturi,Y. Kataoka,T. Katori,Y. Kawamura,M. Kawaue,E. Kearns,M. Khabibullin,T. Kikawa,S. King,V. Kiseeva,J. Kisiel,L. Kneale,H. Kobayashi,L. Koch,S. Kodama,M. Kolupanova,A. Konaka,L. L. Kormos,Y. Koshio,T. Koto,K. Kowalik,Y. Kudo,R. Kurjata,V. Kurochka,M. Kuze,M. La Commara,L. Labarga,M. Lachat,K. Lachner,J. Lagoda,S. M. Lakshmi,M. Lamers James,A. Langella,J. -F. Laporte,L. Lavitola,M. Lawe,Y. Lee,D. Leon Silverio,S. Levorato,S. V. Lewis,C. Lin,S. L. Liu,W. Li,A. Longhin,K. R. Long,A. Lopez Moreno,L. Ludovici,X. Lu,L. Magaletti,K. Mahn,K. K. Mahtani,M. Mandal,D. G. R. Martin,M. Martini,N. McCauley,J. McKean,L. Mellet,T. Lux,S. Manly,A. D. Marino,T. Matsubara,R. Matsumoto,V. Matveev,C. Mauger,K. Mavrokoridis,A. Mefodiev,P. Mehta,S. Miki,E. W. Miller,A. Minamino,S. Mine,J. Mirabito,M. Miura,S. Moriyama,S. Moriyama,P. Morrison,Th. A. Mueller,Y. Nakajima,D. Munford,A. Mu?oz,L. Munteanu,Y. Nagai,T. Nakadaira,K. Nakagiri,M. Nakahata,Y. Nakano,S. Nakayama,S. Nishimori,Y. Nishimura,Y. Noguchi,T. Nosek,P. Novella,J. C. Nugent,H. M. O'Keeffe,L. O'Sullivan,R. Okazaki,K. Okumura,T. Okusawa,N. Onda,L. Osu,W. Okinaga,T2K Collaboration,K. Abe,S. Abe,R. Akutsu,H. Alarakia-Charles,Y. I. Alj Hakim,S. Alonso Monsalve,L. Anthony,M. Antonova,N. Ospina,Y. Oyama,C. M. Schloesser,V. Paolone,J. Pasternak,M. Pfaff,L. Pickering,B. Popov,A. J. Portocarrero Yrey,M. Posiadala-Zezula,Y. S. Prabhu,H. Prasad,F. Pupilli,B. Quilain,P. T. Quyen,E. Radicioni,B. Radics,M. A. Ramirez,P. N. Ratoff,M. Reh,C. Riccio,E. Rondio,S. Roth,N. Roy,L. Russo,D. Douqa,T. A. Doyle,O. Drapier,K. E. Duffy,J. Dumarchez,K. Dygnarowicz,A. Eguchi,J. Elias,S. Emery-Schrenk,G. Erofeev,A. Ershova,G. Eurin,D. Fedorova,S. Fedotov,M. Feltre,L. Feng,D. Ferlewicz,A. J. Finch,G. Fiorillo,M. D. Fitton,J. M. Franco Pati?o,M. Friend,Y. Fujii,Y. Fukuda,Y. Furui,L. Giannessi,C. Giganti,V. Glagolev,M. Gonin,J. González Rosa,K. Gorshanov,M. Guigue,D. R. Hadley,J. T. Haigh,S. Han,D. A. Harris,T. Hasegawa,S. Hassani,Y. Hayato,I. Heitkamp,D. Henaff,Y. Hino,M. Hogan,J. Holeczek,A. Holin,T. Holvey,N. T. Hong Van,T. Honjo,K. Hosokawa,J. Hu,A. K. Ichikawa,K. Ieki,M. Ikeda,T. Ishida,M. Ishitsuka,A. Izmaylov,S. J. Jenkins,C. Jesús-Valls,M. Jia,J. J. Jiang,J. Y. Ji,P. Jonsson,S. Joshi,A. C. Kaboth,T. Kajita,H. Kakuno,K. D. Nakamura,T. Nakaya,K. Nakayoshi,C. E. R. Naseby,D. T. Nguyen,V. Q. Nguyen,K. Scholberg,M. Scott,Y. Seiya,T. Sekiguchi,H. Sekiya,D. Sgalaberna,M. Shiozawa,Y. Shiraishi,A. Shvartsman,N. Skrobova,K. Skwarczynski,D. Smyczek,M. Smy,J. T. Sobczyk,H. Sobel,F. J. P. Soler,A. J. Speers,R. Spina,Y. Stroke,I. A. Suslov,A. Suzuki,S. Y. Suzuki,M. Tada,S. Tairafune,A. Takeda,Y. Takeuchi,K. Takifuji,H. K. Tanaka,H. Tanigawa,A. Teklu,V. V. Tereshchenko,N. Thamm,N. Tran,T. Tsukamoto,Y. Uchida,M. Vagins,M. Varghese,E. Villa,U. Virginet,T. Vladisavljevic,T. Wachala,D. Wakabayashi,H. T. Wallace,J. G. Walsh,L. Wan,D. Wark,A. Weber,C. Wilkinson,J. R. Wilson,K. Wood,C. Wret,J. Xia,K. Yamamoto,T. Yamamoto,T. Yamamoto,Y. Yoshimoto,N. Yoshimura,A. Zalewska,J. Zalipska,G. Zarnecki,X. Y. Zhao,H. Zhong,T. Zhu,M. Ziembicki,E. D. Zimmerman,M. Zito,S. Zsoldos,S. Aoki,K. A. Apte,T. Arai,T. Arihara,S. Arimoto,Y. Asada,Y. Ashida,N. Babu,G. Barr,D. Barrow,P. Bates,M. Batkiewicz-Kwasniak,V. Berardi,L. Berns,S. Bordoni,S. B. Boyd,C. Bronner,A. Bubak,M. Buizza Avanzini,J. A. Caballero,N. F. Calabria,S. Cao,D. Carabadjac,S. L. Cartwright,M. P. Casado,M. G. Catanesi,J. Chakrani,A. Chalumeau,P. S. Chong,A. Chvirova,G. Collazuol,F. Cormier,A. Cudd,D. D'ago,C. Dalmazzone,T. Daret,P. Dasgupta,C. Davis,Yu. I. Davydov,A. De Roeck,G. De Rosa,T. Dealtry,C. Densham,A. Dergacheva,R. Dharmapal Banerjee,F. Di Lodovico,G. Diaz Lopez,S. Dolan,A. Rychter,W. Saenz,K. Sakashita,E. M. Sandford,Y. Sato,T. Schefke.First measurement of neutron capture multiplicity in neutrino-oxygen neutral-current quasi-elastic-like interactions using an accelerator neutrino beam[EB/OL].(2025-05-28)[2025-07-16].https://arxiv.org/abs/2505.22547.点此复制
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