2 papers
hep-ex2026
Test of lepton flavor universality with and decays at Belle II
Belle II Collaboration, M. Abumusabh, I. Adachi +494
We test lepton flavor universality with a measurement of the branching-fraction ratios $R(D^{(*)}) \equiv \mathcal{B}(\bar{B} \rightarrow D^{(*)} τ^{-} \barν_τ)/\mathcal{B}(\bar{B}…
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. T…