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- W2999167411 startingPage "B1128" @default.
- W2999167411 abstract "The $^{1}S_{0}$ $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ zero-energy scattering length is calculated by solving the Schrodinger equation for the coupled $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ and $ensuremath{Sigma}ensuremath{-}ensuremath{Sigma}$ channels, using pionic exchange potentials (with hard core of radius ${x}_{0}$) derived for the case of odd $ensuremath{Lambda}ensuremath{-}ensuremath{Sigma}$ parity. Using the value of ${x}_{0}$ and the coupling constants ${f}_{ensuremath{Sigma}ensuremath{Sigma}}$ and ${g}_{ensuremath{Lambda}ensuremath{Sigma}}$ which fit the low-energy $ensuremath{Lambda}ensuremath{-}N$ scattering data, the $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ interaction is found to be so strongly attractive as to bind in the $^{1}S_{0}$ $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ state. Since the $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ interaction deduced phenomenologically from the analysis of $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ hypernuclei is not strong enough to bind, we conclude that the assumption of odd $ensuremath{Lambda}ensuremath{-}ensuremath{Sigma}$ parity leads to contradictory results in the calculation of the low-energy $ensuremath{Lambda}ensuremath{-}N$ and $ensuremath{Lambda}ensuremath{-}ensuremath{Lambda}$ scattering." @default.
- W2999167411 created "2020-01-23" @default.
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- W2999167411 date "1964-06-08" @default.
- W2999167411 modified "2023-10-14" @default.
- W2999167411 title "S-WaveΛ−ΛInteraction for OddΣ−ΛParity" @default.
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- W2999167411 doi "https://doi.org/10.1103/physrev.134.b1128" @default.
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