2 papers
hep-ex2026
Search for the decay using data from the Belle and Belle II experiments
Belle, Belle II Collaborations, : +435
We report a search for the rare decay using mesons produced near threshold in electron-positron collisions and colle…
hep-ex2025
Improved measurement of Born cross sections for and ( = 0, 1, 2) at Belle and Belle II
Belle, Belle II Collaborations, : +424
We study the processes and ( = 0, 1, 2) at center-of-mass energies from 10.73 to 11.02 GeV using a $142.5\,\mathrm{fb}^{…