Search for the lepton number violation decay $\omega \to {\pi }^{+}{\pi }^{+}{e}^{-}{e}^{-}+c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

The lepton number violation decay $\omega \to {\pi }^{+}{\pi }^{+}{e}^{-}{e}^{-}+c.c.$ is searched for via $J/\psi \to \omega \eta$ using a data sample of $(1.0087\pm 0.0044)\times 10^{10}$ $J/\psi$ events collected by…