2 papers
hep-ex2025
Search for decays at the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk +446
We present a search for the rare flavor-changing neutral-current decay with data collected by the Belle II experiment at the SuperKEKB electron-posit…
hep-ex2025
Measurement of the branching fraction of via
BESIII Collaboration, M. Ablikim, M. N. Achasov +640
Based on of collision data taken at center-of-mass energies between 4.237 and 4.699 GeV with the BESIII detector, we study the leptonic de…