Study of the Semileptonic Decay ${\Lambda }_c^{+}\to \Lambda e^{+}{\nu }_e$

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

The measurement of the Cabibbo-favored semileptonic decay ${\Lambda }_c^{+}\to \Lambda e^{+}{\nu }_e$ is reported using a $4.5{\mathrm{fb}}^{-1}$ data sample of $e^{+}{e}^{-}$ annihilations collected at c…