31 papers
First search for decays
Belle II Collaboration, M. Abumusabh, I. Adachi +440
We report the first search for the flavor-changing neutral-current decays , where is a hadronic system with strangeness equal to 1, in data co…
Observation of the decays and
Belle, Belle II Collaborations, : +403
We report the first observation of the decays and , with significances of $6.4\,…
Search for the lepton-flavor-violating decays at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal +447
We present the result of a search for the charged-lepton-flavor violating decays , where is a muon or an electron, using a data sampl…
Search for ( = 0, 1, 2) near GeV at Belle II
Belle II Collaboration, M. Abumusabh, I. Adachi +399
We search for the ( = 0, 1, 2) processes at center-of-mass energies = 10.653, 10.701, 10.746, and 10.804 GeV. These data were collected with t…
Measurement of inclusive partial branching fractions and at Belle II
Belle II Collaboration, M. Abumusabh, I. Adachi +419
A sample of 365 fb of data collected by the Belle II experiment is used to measure the partial branching fractions of charmless semileptonic…
Test of lepton flavor universality with measurements of and using semileptonic tagging at the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk +450
We report measurements of the ratios of branching fractions ${\cal R}(D^{(*)+}) = \frac{{\cal B}(\overline{B}{}^0 \to D^{(*)+} \,Ï^- \, \overlineν_Ï)}{{\cal B}(\overline{B}{}^0…