000002057 001__ 2057
000002057 005__ 20200729010025.0
000002057 037__ $$aBELLE2-NOTE-PL-2020-026
000002057 041__ $$aeng
000002057 100__ $$aThe Belle II Collaboration
000002057 245__ $$aInclusive B → X_u e ν_e endpoint analysis: Approved plots for ICHEP2020
000002057 260__ $$c2020-07-28
000002057 300__ $$amult. p
000002057 520__ $$aThis note contains the approved plots associated with the note BELLE2-NOTE-PH-2019-013. This is an untagged analysis of B → Xueνe inclusive decay in Phase 3 data, with the initial aim of rediscovering the charmless B-meson decays using the Belle II detector. The used well-known inclusive technique examines the endpoint region of the inclusive charged-lepton center-of-mass momentum distribution to seek evidence for CKM-suppressed B → Xueν processes in a space where B → Xceν background channels are kinematically disfavoured. The full ICHEP dataset was used. The resulting plots of the fit to the off-resonance data to estimate the continuum contributions, and of the excess in data in the electron spectrum in the B → Xeν endpoint region are shown. The excess is consistent with that from B → Xueν decay.
000002057 8560_ $$fandrea.fodor@desy.de
000002057 8564_ $$uhttps://docs.belle2.org/record/2057/files/BELLE2-NOTE-PL-2020-026.pdf