3 papers
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
Search for a long-lived spin-0 mediator in transitions at the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk +411
Additional spin-0 particles appear in many extensions of the standard model. We search for long-lived spin-0 particles in -meson decays mediated by a quark transiti…
hep-ex2024
Determination of the CKM angle from a combination of Belle and Belle II results
Belle, Belle II Collaborations, : +399
We report a determination of the CKM angle , also known as , from a combination of measurements using samples of up to 711~fb from the Belle experiment and up to…