$ΛN$ correlations from the stopped $K^-$ reaction on ${}^4$He

Suzuki, T.; Bhang, H.; Chiba, J.; Choi, S.; Fukuda, Y.; Hanaki, T.; Hayano, R. S.; Iio, M.; Ishikawa, T.; Ishimoto, S.; Ishiwatari, T.; Itahashi, K.; Iwai, M.; Iwasaki, M.; Kienle, P.; Kim, J. H.; Matsuda, Y.; Ohnishi, H.; Okada, S.; Outa, H.; Sato, M.; Suzuki, S.; Tomono, D.; Widmann, E.; Yamazaki, T.; Yim, H.

$ΛN$ correlations from the stopped $K^-$ reaction on ${}^4$He

Authors

Description

We have investigated correlations of coincident $ΛN$ pairs from the stopped $K^-$ reaction on ${}^4$He, and clearly observed $Λp$ and $Λn$ branches of the two-nucleon absorption process in the $ΛN$ 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