000002756 001__ 2756
000002756 005__ 20211121215210.0
000002756 037__ $$aBELLE2-CONF-PH-2021-012
000002756 041__ $$aeng
000002756 100__ $$aManca Mrvar
000002756 245__ $$aMeasurement of the inclusive semileptonic B meson branching fraction in 62.8/fb of Belle II data
000002756 260__ $$a$$c2021-11-17
000002756 300__ $$a8
000002756 520__ $$aWe report a measurement of the branching fraction of inclusive semileptonic B meson decays B -> Xc l nu in Υ(4S) -> BBbar data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy e+e- collider and corresponding to 62.8/fb of integrated luminosity. Only a charged lepton (electon or muon) is reconstructed and the signal yield is determined from a fit to the lepton momentum distribution in the center-of-mass frame of the colliding beams. Averaging the result in the electron and muon channels, we find Br( B -> Xclnu ) = ( 9.75 +/- 0.03(stat) +/- 0.47(syst) )%.
000002756 700__ $$aChristoph Schwanda
000002756 8560_ $$fchristoph.schwanda@oeaw.ac.at
000002756 8564_ $$uhttps://docs.belle2.org/record/2756/files/BELLE2-CONF-PH-2021-012.pdf$$zAdded author list/acknowledgements