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- W2040403009 abstract "A calculation is made of the forces between hyperons and nucleons under the assumption that the forces are due to the exchange of pions. The $ensuremath{Lambda}$ and $ensuremath{Sigma}$ are assumed to have spin textonehalf{} and the same parity. The Hamiltonian is taken to be the same as the static-model pion-nucleon Hamiltonian except for differences in isotopic spin and possibly in the strength of the coupling. The same approximations are made as those ordinarily made in evaluating the nucleon-nucleon potential, although it is noted that in case all the pion-baryon coupling constants are equal, the hyperon-nucleon potentials are just linear combinations of the observed nucleon-nucleon potentials. The pion-hyperon coupling constant is determined by comparison with potentials obtained from analysis of hyperfragment data. The resulting value is about the same as the pion-nucleon constant. The elastic hyperon-nucleon and $ensuremath{Lambda}+Nensuremath{leftrightarrow}ensuremath{Sigma}+N$ scattering cross sections are evaluated. Results are consistent with experiment." @default.
- W2040403009 created "2016-06-24" @default.
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- W2040403009 date "1957-09-15" @default.
- W2040403009 modified "2023-09-24" @default.
- W2040403009 title "Pion Contribution to Hyperon-Nucleon Forces" @default.
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- W2040403009 doi "https://doi.org/10.1103/physrev.107.1714" @default.
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