Measurement of the absolute branching fractions of ${\Lambda }_c^{+}\to \Lambda \eta {\pi }^{+}$ and $\Sigma (1385{)}^{+}\eta$

M. Ablikim, M. N. Achasov, S. Ahmed +447

We study the decays ${\Lambda }_c^{+}\to \Lambda \eta {\pi }^{+}$ and $\Sigma (1385{)}^{+}\eta$ based on ${\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ pairs produced in $e^{+}{e}^{-}$ collisions at a center-of-mass energy of $\sqrt{s}=4.6~\mb…