activity
20242026
collaborators

9 papers

hep-ex2026

Study of decays at Belle and Belle II

Belle, Belle II Collaborations, : +412

We report a measurement of the branching fraction for the leptonic decay . This work presents the first result using Belle~II data, an updated Be…

hep-ex2026

Study of via initial-state radiation at Belle~II

Belle II Collaboration, M. Abumusabh, I. Adachi +417

Using a data sample of 427.9 fb collected by the Belle~II detector at or near the and resonances, the cross sections for $(h=π/K…

hep-ex2026

A search for feebly-interacting particles in decays with missing energy at Belle

Belle, Belle II Collaborations, : +406

We present a search for an invisible hidden-sector particle , produced in and decays, where ,…

hep-ex2025

Measurement of asymmetries in decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +436

We report measurements of time-dependent asymmetries in decays based on a data sample of events collected at the $Î¥(4…

hep-ex2025

Measurement of violation in decays at Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +399

We report a measurement of the -violating parameters and in decays at Belle II using a sample of events reco…

hep-ex2024

Measurement of asymmetries in decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +399

We describe a measurement of charge-parity () violation asymmetries in decays using Belle II data. We consider and $η'\toρ(\toπ^…