Nonlocalities and Fermi motion corrections in K- atoms
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Nonlocalities and Fermi motion corrections in K- atoms

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Nonlocalities and Fermi motion corrections in K- atoms

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García Recio, Carmen; Nieves Pamplona, Juan Miguel; Oset Báguena, Eulogio Perfil; Ramos Gómez, Àngels
Aquest document és un/a article, creat/da en: 2002
We evaluate the p-wave K-N amplitudes from the chiral Lagrangians and from there construct the p-wave part of the K- nucleus optical potential plus a small s-wave part induced from the elementary p-wave amplitude and the nuclear Fermi motion. Simultaneously, the momentum and energy dependence of the s-wave optical potential, previously developed, are taken into account and shown to generate a small p-wave correction to the optical potential. All the corrections considered are small compared to the leading s-wave potential, and lead to changes in the shifts and widths which are smaller than the experimental errors. A thorough study of the threshold region and low densities is conducted, revealing mathematical problems for which a physical solution is given.

    García Recio, Carmen Nieves Pamplona, Juan Miguel Oset Báguena, Eulogio Ramos, A. 2002 Nonlocalities and Fermi motion corrections in K- atoms Nuclear Physics A 703 1-2 271 294
http://dx.doi.org/10.1016/S0375-9474(01)01328-8
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