Charged-hadron identification at Belle II

R Žlebčík; L Zhu; QD Zhou; JS Zhou; B Zhang; M Zeyrek; F Zeng; L Zani; Y Yusa; J Yuan; K Yoshihara; JH Yin; K Yi; J Yelton; SB Yang; WC Yan; W Yan; S Yamada; BD Yabsley; XP Xu; E Won; C Wessel; S Watanuki; M Watanabe; A Warburton; Z Wang; MZ Wang; S Wallner; M Wakai; A Vossen; R Volpe; V Vobbilisetti; L Vitale; VS Vismaya; M Veronesi; KE Varvell; RV Tonder; SE Vahsen; Y Ushiroda; P Urquijo; S Uno; K Uno; Y Unno; K Unger; T Uglov; E Uenlue; I Ueda; I Tsaklidis; FF Trantou; K Trabelsi; E Torassa; R Tiwary; O Tittel; F Testa; F Tenchini; K Tanida; U Tamponi; M Takizawa; M Takahashi; H Svidras; N Suwonjandee; K Sumisawa; M Sumihama; Y Sue; R Stroili; S Stefkova; P Stavroulakis; M Starič; B Spruck; S Spataro; E Solovieva; A Sokolov; A Soffer; M Sobotzik; RJ Sobie; J Skorupa; JB Singh; F Simon; X Simo; A Sibidanov; D Shtol; JG Shiu; T Shillington; XD Shi; W Shan; C Sfienti; ME Sevior; J Serrano; K Senyo; A Selce; Y Seino; AJ Schwartz; C Schwanda; M Schnepf; S Schneider; J Schmitz; B Scavino; V Savinov; L Santelj; S Sandilya

Journal article

Charged-hadron identification at Belle II

R Žlebčík, L Zhu, QD Zhou, JS Zhou, B Zhang, M Zeyrek, F Zeng, L Zani, Y Yusa, J Yuan, K Yoshihara, JH Yin, K Yi, J Yelton, SB Yang, WC Yan, W Yan, S Yamada, BD Yabsley, XP Xu Show all

European Physical Journal C | Springer Science and Business Media LLC | Published : 2025

DOI: 10.1140/epjc/s10052-025-14627-7

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 426fb-1 of data collected at the energy-asymmetric e+e- collider SuperKEKB in 2019–2022 at center-of-mass energies at and near the mass of the Υ(4S).