Search for new ${\pi }^0$-like particles produced in association with a $\tau$-lepton pair

The BABAR Collaboration, J. P. Lees, others

We report on a search in $e^{+}{e}^{-}$ annihilations for new ${\pi }^0$-like particles produced in association with a $\tau$-lepton pair. These objects, with a similar mass and similar decay mo…