$\hat{I}›N$ correlations from the stopped $K^{-}$ reaction on ${}^4$He

Abstract

We have investigated correlations of coincident $\hat{I}›N$ pairs from the stopped $K^{-}$ reaction on ${}^4$He, and clearly observed $\hat{I}›p$ and $\hat{I}›n$ branches of the two-nucleon absorption process in the $\hat{I}›N$ invariant mass spectra. In addition, non-mesonic reaction channels, which indicate possible exotic signals for the formation of strange multibaryon states, have been identified.

5 pages, 3 figures, submitted to Physical Review Letters