collaborators

22 papers

hep-ex2026

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.…

hep-ex2026

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…

hep-ex2026

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…

hep-ex2026

Observation of the radiative decay

Belle II Collaboration, M. Abumusabh, I. Adachi +367

We observe the radiative decay for the first time, with a significance exceeding standard deviations. The signal is found in the conti…

hep-ex2026

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…

hep-ex2026

Observation of the decays and

Belle, Belle II Collaborations, : +403

We report the first observation of the decays and , with significances of $6.4\,…