Effects of $Λ - Σ$ Coupling in ${}_{Λ}^{4}H$ , ${}_{Λ}^{4}{He}$ , and ${}_{Λ}^{5}{He}$

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1 September 1972

journal article
research article
Published by American Physical Society (APS) in Physical Review C

Vol. 6 (3) , 741-748
https://doi.org/10.1103/physrevc.6.741

Abstract

We consider the effect on the binding energies of

{}_{Λ}^{4}{He} - {}_{Λ}^{4}H

of inclusion of admixing the

Σ

particle, based on a

Λ - N

potential derived from

{}_{Λ}^{5}{He}

. This mixing explains the discrepancy in Coulomb energy of

{}_{Λ}^{4}{He} - {}_{Λ}^{4}H

and leads to a consistent set of potential parameters.

Keywords

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