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- W2044961489 abstract "Abstract We report on DWIA calculations of the pion inclusive spectra related to Σ-formation in (K−, π+) reactions on nuclei. Realistic distorted waves are used to describe the incoming kaon and outgoing pion. The Σ wave function is calculated in a real Woods-Saxon potential, the depth of which provides information about the underlying Σ N effective interaction. The absorptive effect due to the Σ-Λ conversion process in the nuclear medium is taken into account by effective two-channel coupled equations. Comparisons are made with the available data on 12C and 16O. Using a weak Σ-nucleus potential the overall agreement is satisfactory for the spectrum derived from kaon-in-flight experiments. Concerning the three peaks reported in a stopped kaon experiment on 12C, the lowest peak structure can be generated by increasing the depth of the Σ potential in 12C. However, the remaining two narrow structures cannot be reproduced as Σ-particle-proton-hole states in our continuum treatment of the Σ spectrum. The difficulties in extracting the strength of the Σ-nucleus spin-orbit potential are also discussed." @default.
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- W2044961489 date "1987-08-01" @default.
- W2044961489 modified "2023-09-27" @default.
- W2044961489 title "Σ− hypernuclear spectra from (K−, π+) inclusive reactions" @default.
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- W2044961489 doi "https://doi.org/10.1016/0375-9474(87)90589-6" @default.
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