$S$-matrix poles near the $ΛN$ and $ΣN$ Thresholds in the Coupled \$ΛN-ΣN$ SystemReport as inadecuate



 $S$-matrix poles near the $ΛN$ and $ΣN$ Thresholds in the Coupled \$ΛN-ΣN$ System


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We search $t$-matrix poles for $\Lambda N-\Sigma N$ coupling interactions using two soft core models of the Nijmegen group which bind the hypertriton at the correct binding energy, and hard core models which are still influential in hypernuclear physics. To treat the hard core potentials, a useful method for calculating the off-shell $t$-matrix is

Author: K. Miyagawa; H. Yamamura

Source: https://archive.org/







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