TY  - EJOUR
AU  - Cao, Lu
TI  - New results on |V<sub>ub</sub>| using inclusive and exclusive B decays from the Belle experiment
IS  - arXiv:2311.00379
M1  - PUBDB-2026-00222
M1  - arXiv:2311.00379
PY  - 2024
N1  - 6 pages, proceedings for EPS-HEP 2023
AB  - We present two recent measurements of semileptonic B decays at Belle, offering valuable insights into the determination of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element |V<sub>ub</sub>|. These analyses use the full Belle dataset, comprising 772 ×10<sup>6</sup> B―B pairs collected at the Υ(4S) resonance. With an innovative strategy, the inclusive B → X<sub>u</sub> <i>l</i>ν and exclusive B → π<i>l</i>ν decays are simultaneously analyzed for the first time, and the |V<sub>ub</sub>| ratio is extracted as |V<sub>ub</sub><sup>excl.</sup>|/|V<sub>ub</sub><sup>incl.</sup>|=0.97 ±0.12. Furthermore, we provide preliminary results for the inclusive branching fractions ratio of B → X<sub>u</sub> <i>l</i>ν and B → X<sub>c</sub> <i>l</i>ν decays, accompanied by additional interpretations aimed at deriving the inclusive |V<sub>ub</sub>|/|V<sub>cb</sub>| ratio.
KW  - electron positron: annihilation (INSPIRE)
KW  - electron positron: colliding beams (INSPIRE)
KW  - B: pair production (INSPIRE)
KW  - branching ratio: ratio: measured (INSPIRE)
KW  - B: semileptonic decay (INSPIRE)
KW  - CKM matrix (INSPIRE)
KW  - BELLE (INSPIRE)
KW  - KEK-B (INSPIRE)
KW  - Upsilon(10570): electroproduction (INSPIRE)
KW  - experimental results (INSPIRE)
LB  - PUB:(DE-HGF)25
UR  - https://bib-pubdb1.desy.de/record/643475
ER  -