Theoretical study on ${\Lambda }_c^{+}\to \Lambda K^{+}{\bar{K}}^0$ decay and ${\Xi }^{\ast }(1690)$ resonance

Si-Wei Liu, Qing-Hua Shen, Ju-Jun Xie

We present a theoretical study of ${\Xi }^{\ast }(1690)$ resonance in the ${\Lambda }_c^{+}\to \Lambda K^{+}{\bar{K}}^0$ decay, where the weak interaction part proceeds through the Cabibbo-favored process $c \to…