Charged-hadron identification at Belle II
High Energy Physics - Experiment
2025-11-04 v3
Abstract
The Belle II experiment's ability to identify particles critically affects the sensitivity of its measurements. We describe Belle II's algorithms for identifying charged particles and evaluate their performance in separating pions, kaons, and protons using 426 fb of data collected at the energy-asymmetric collider SuperKEKB in 2019--2022 at center-of-mass energies at and near the mass of the .
Cite
@article{arxiv.2506.04355,
title = {Charged-hadron identification at Belle II},
author = {Belle II Collaboration and I. Adachi and H. Ahmed and Y. Ahn and H. Aihara and N. Akopov and A. Albert and S. Alghamdi and M. Alhakami and A. Aloisio and N. Althubiti and K. Amos and M. Angelsmark and N. Anh Ky and C. Antonioli and D. M. Asner and H. Atmacan and T. Aushev and V. Aushev and M. Aversano and R. Ayad and V. Babu and H. Bae and N. K. Baghel and S. Bahinipati and P. Bambade and Sw. Banerjee and M. Barrett and M. Bartl and J. Baudot and A. Baur and A. Beaubien and F. Becherer and J. Becker and J. V. Bennett and F. U. Bernlochner and V. Bertacchi and M. Bertemes and E. Bertholet and M. Bessner and S. Bettarini and B. Bhuyan and F. Bianchi and T. Bilka and D. Biswas and A. Bobrov and D. Bodrov and A. Bondar and G. Bonvicini and J. Borah and A. Boschetti and A. Bozek and M. Bračko and P. Branchini and R. A. Briere and T. E. Browder and A. Budano and S. Bussino and Q. Campagna and M. Campajola and L. Cao and G. Casarosa and C. Cecchi and M. -C. Chang and P. Cheema and L. Chen and Y. -T. Chen and B. G. Cheon and K. Chilikin and J. Chin and K. Chirapatpimol and H. -E. Cho and K. Cho and S. -J. Cho and S. -K. Choi and S. Choudhury and J. Cochran and I. Consigny and L. Corona and J. X. Cui and S. Das and E. De La Cruz-Burelo and S. A. De La Motte and G. De Pietro and R. de Sangro and M. Destefanis and S. Dey and A. Di Canto and J. Dingfelder and Z. Doležal and I. Domínguez Jiménez and T. V. Dong and M. Dorigo and G. Dujany and P. Ecker and J. Eppelt and R. Farkas and P. Feichtinger and T. Ferber and T. Fillinger and C. Finck and G. Finocchiaro and A. Fodor and F. Forti and A. Frey and B. G. Fulsom and A. Gabrielli and A. Gale and E. Ganiev and M. Garcia-Hernandez and R. Garg and G. Gaudino and V. Gaur and V. Gautam and A. Gaz and A. Gellrich and D. Ghosh and G. Giakoustidis and R. Giordano and A. Giri and P. Gironella Gironell and B. Gobbo and R. Godang and O. Gogota and P. Goldenzweig and W. Gradl and E. Graziani and D. Greenwald and Z. Gruberová and Y. Guan and K. Gudkova and I. Haide and Y. Han and K. Hayasaka and H. Hayashii and S. Hazra and M. T. Hedges and A. Heidelbach and G. Heine and I. Heredia de la Cruz and M. Hernández Villanueva and T. Higuchi and M. Hoek and M. Hohmann and R. Hoppe and P. Horak and C. -L. Hsu and A. Huang and T. Humair and T. Iijima and K. Inami and G. Inguglia and N. Ipsita and A. Ishikawa and R. Itoh and M. Iwasaki and P. Jackson and D. Jacobi and W. W. Jacobs and E. -J. Jang and Q. P. Ji and X. B. Ji and S. Jia and Y. Jin and A. Johnson and H. Junkerkalefeld and J. Kandra and K. H. Kang and G. Karyan and T. Kawasaki and F. Keil and C. Ketter and M. Khan and C. Kiesling and C. -H. Kim and D. Y. Kim and J. -Y. Kim and K. -H. Kim and K. Kinoshita and P. Kodyš and S. Kohani and K. Kojima and A. Korobov and S. Korpar and E. Kovalenko and R. Kowalewski and P. Križan and P. Krokovny and Y. Kulii and J. Kumar and K. Kumara and T. Kunigo and A. Kuzmin and Y. -J. Kwon and S. Lacaprara and K. Lalwani and T. Lam and L. Lanceri and J. S. Lange and T. S. Lau and M. Laurenza and R. Leboucher and F. R. Le Diberder and M. J. Lee and P. Leo and P. M. Lewis and C. Li and H. -J. Li and L. K. Li and Q. M. Li and W. Z. Li and Y. Li and Y. B. Li and Y. P. Liao and J. Libby and J. Lin and S. Lin and V. Lisovskyi and M. H. Liu and Q. Y. Liu and Y. Liu and Z. Q. Liu and D. Liventsev and S. Longo and T. Lueck and C. Lyu and Y. Ma and C. Madaan and M. Maggiora and S. P. Maharana and R. Maiti and G. Mancinelli and R. Manfredi and E. Manoni and M. Mantovano and D. Marcantonio and S. Marcello and C. Marinas and C. Martellini and A. Martens and T. Martinov and L. Massaccesi and M. Masuda and K. Matsuoka and D. Matvienko and M. Maushart and J. A. McKenna and R. Mehta and F. Meier and D. Meleshko and M. Merola and C. Miller and M. Mirra and S. Mitra and K. Miyabayashi and G. B. Mohanty and S. Moneta and A. L. Moreira de Carvalho and H. -G. Moser and R. Mussa and I. Nakamura and M. Nakao and Y. Nakazawa and M. Naruki and Z. Natkaniec and A. Natochii and M. Nayak and M. Neu and S. Nishida and A. Novosel and S. Ogawa and R. Okubo and H. Ono and E. R. Oxford and G. Pakhlova and S. Pardi and K. Parham and J. Park and K. Park and S. -H. Park and A. Passeri and S. Patra and R. Peschke and R. Pestotnik and L. E. Piilonen and P. L. M. Podesta-Lerma and T. Podobnik and A. Prakash and C. Praz and S. Prell and E. Prencipe and M. T. Prim and S. Privalov and H. Purwar and P. Rados and G. Raeuber and S. Raiz and V. Raj and K. Ravindran and J. U. Rehman and M. Reif and S. Reiter and M. Remnev and L. Reuter and D. Ricalde Herrmann and I. Ripp-Baudot and G. Rizzo and J. M. Roney and A. Rostomyan and N. Rout and D. A. Sanders and S. Sandilya and L. Santelj and V. Savinov and B. Scavino and J. Schmitz and S. Schneider and M. Schnepf and C. Schwanda and A. J. Schwartz and Y. Seino and A. Selce and K. Senyo and J. Serrano and M. E. Sevior and C. Sfienti and W. Shan and X. D. Shi and T. Shillington and J. -G. Shiu and D. Shtol and A. Sibidanov and X. Simo and F. Simon and J. B. Singh and J. Skorupa and R. J. Sobie and M. Sobotzik and A. Soffer and A. Sokolov and E. Solovieva and S. Spataro and B. Spruck and M. Starič and P. Stavroulakis and S. Stefkova and R. Stroili and Y. Sue and M. Sumihama and K. Sumisawa and N. Suwonjandee and H. Svidras and M. Takahashi and M. Takizawa and U. Tamponi and K. Tanida and F. Tenchini and F. Testa and O. Tittel and R. Tiwary and E. Torassa and K. Trabelsi and F. F. Trantou and I. Tsaklidis and I. Ueda and E. Uenlue and T. Uglov and K. Unger and Y. Unno and K. Uno and S. Uno and P. Urquijo and Y. Ushiroda and S. E. Vahsen and R. van Tonder and K. E. Varvell and M. Veronesi and V. S. Vismaya and L. Vitale and V. Vobbilisetti and R. Volpe and A. Vossen and M. Wakai and S. Wallner and M. -Z. Wang and Z. Wang and A. Warburton and M. Watanabe and S. Watanuki and C. Wessel and E. Won and X. P. Xu and B. D. Yabsley and S. Yamada and W. Yan and W. C. Yan and S. B. Yang and J. Yelton and K. Yi and J. H. Yin and K. Yoshihara and J. Yuan and Y. Yusa and L. Zani and F. Zeng and M. Zeyrek and B. Zhang and J. S. Zhou and Q. D. Zhou and L. Zhu and R. Žlebčík},
journal= {arXiv preprint arXiv:2506.04355},
year = {2025}
}
Comments
29 pages, 14 figures