Search for the weak radiative decay ${\Lambda }_c^{+}\to {\Sigma }^{+}\gamma$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

The Cabibbo-allowed weak radiative decay ${\Lambda }_c^{+}\to {\Sigma }^{+}\gamma$ has been searched for in a sample of ${\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ pairs produced in $e^{+}{e}^{-}$ annihilations, corresponding to an i…