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- W1974976648 abstract "Abstract We study phenomenologically the density dependence of the K − optical potential V opt ( r ) at zero kinetic energy by fitting it to a comprehensive set of atomic data across the periodic table. Two families of solutions offer improved fits over that for the standard t eff ϱ ( r ) paraameterization of V opt . One family contains solutions for V opt with RMS radii larger than those of the matter density ϱ , as expected from finite-range folding corrections. The other family offers substantially improved fits to the data and gives rise to Re V opt of a size smaller than that of ϱ . The new family contains solutions for which V opt is attractive inside the nucleus and on its surface, becoming repulsive at large distances. The repulsion can be made to approximately agree with the low-density limit V opt → tϱ where t is the free-space K N t matrix. It is argued that this sign flip might be expected from the underlying nuclear propagation of the Λ(1405)." @default.
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- W1974976648 date "1993-06-01" @default.
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- W1974976648 title "Density dependence in kaonic atoms" @default.
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- W1974976648 doi "https://doi.org/10.1016/0370-2693(93)90593-7" @default.
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