Two-body Pion Absorption on ${}^{3}He$ at Threshold

L. L. Kiang, T. -S. H. Lee, D. O. Riska

It is shown that a satisfactory explanation of the ratio of the rates of the reactions ${}^{3}He({\pi }^{-},nn)$ and ${}^{3}He({\pi }^{-},np)$ for stopped pions is obtained once the effect of the short…