33 papers
Search for the decay
Belle, Belle II Collaborations, : +432
We present the first search for decays. We look for signal decays in events produced in asymmetric-energy electron-positron collisions.…
First measurement of the masses of the and states and the energy dependence of the cross sections for and
Belle, Belle II Collaborations, : +398
We study the processes and at center-of-mass energies =(10.73 -- 11.02) GeV using a data sampl…
Charged-lepton identification at Belle~II
Belle II Collaboration, M. Abumusabh, I. Adachi +409
Effective particle identification capabilities are a strategic priority for the physics program of the Belle~II experiment. We describe the algorithms used at Belle~II for identify…
First evidence of and search for
Belle, Belle II Collaborations, : +412
We search for the pionic transitions and in decays using the Belle and Belle~II data sam…
Measurement of mixing-induced CP violation in the decay
Belle II Collaboration, M. Abumusabh, I. Adachi +437
Measurements of charge-parity (CP) violation in quark transitions provide stringent tests of the current theory and sensitive probes of particles or interactions beyond it. We repo…
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…