First Simultaneous Determination of Inclusive and Exclusive

L Cao; F Bernlochner; K Tackmann; I Adachi; H Aihara; S Al Said; DM Asner; H Atmacan; T Aushev; R Ayad; V Babu; S Bahinipati; S Banerjee; P Behera; K Belous; J Bennett; M Bessner; B Bhuyan; T Bilka; D Biswas; A Bobrov; D Bodrov; J Borah; A Bozek; M Bračko; P Branchini; TE Browder; A Budano; M Campajola; D Červenkov; MC Chang; BG Cheon; K Chilikin; HE Cho; K Cho; SJ Cho; SK Choi; Y Choi; S Choudhury; D Cinabro; S Cunliffe; S Das; G De Marino; G De Nardo; G De Pietro; R Dhamija; F Di Capua; J Dingfelder; Z DoleŽal; TV Dong; T Ferber; D Ferlewicz; A Frey; BG Fulsom; V Gaur; A Garmash; A Giri; P Goldenzweig; E Graziani; T Gu; Y Guan; K Gudkova; C Hadjivasiliou; S Halder; T Hara; O Hartbrich; K Hayasaka; H Hayashii; MT Hedges; D Herrmann; WS Hou; CL Hsu; T Iijima; K Inami; N Ipsita; A Ishikawa; R Itoh; M Iwasaki; WW Jacobs; EJ Jang; S Jia; Y Jin; KK Joo; D Kalita; KH Kang; C Kiesling; CH Kim; DY Kim; KH Kim; YK Kim; K Kinoshita; P Kodyš; T Konno; A Korobov; S Korpar; E Kovalenko; P KriŽan; P Krokovny; T Kuhr; R Kumar

Journal article

First Simultaneous Determination of Inclusive and Exclusive

L Cao, F Bernlochner, K Tackmann, I Adachi, H Aihara, S Al Said, DM Asner, H Atmacan, T Aushev, R Ayad, V Babu, S Bahinipati, S Banerjee, P Behera, K Belous, J Bennett, M Bessner, B Bhuyan, T Bilka, D Biswas Show all

Physical Review Letters | Published : 2023

DOI: 10.1103/PhysRevLett.131.211801

Abstract

The first simultaneous determination of the absolute value of the Cabibbo-Kobayashi-Maskawa matrix element Vub using inclusive and exclusive decays is performed with the full Belle data set at the (4S) resonance, corresponding to an integrated luminosity of 711 fb-1. We analyze collision events in which one B meson is fully reconstructed in hadronic modes. This allows for the reconstruction of the hadronic Xu system of the semileptonic b→uν¯ decay. We separate exclusive B→πν¯ decays from other inclusive B→Xuν¯ and backgrounds with a two-dimensional fit that utilizes the number of charged pions in the Xu system and the four-momentum transfer q2 between the B and Xu systems. Combining our meas..

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