Chiral unitary approach to the K--deuteron scattering length
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Chiral unitary approach to the K--deuteron scattering length

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Chiral unitary approach to the K--deuteron scattering length

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Kamalov, Sabit S.; Oset Báguena, Eulogio Perfil; Ramos Gómez, Àngels
Aquest document és un/a article, creat/da en: 2001
Starting from a recent model where the (K) over barN amplitudes are evaluated from the chiral Lagrangians using a coupled-channel unitary method, we evaluate here the scattering length for K--deuteron scattering. We find that the double scattering contribution is very large compared to the impulse approximation and that the charge-exchange contribution of this rescattering is as large as the sequential K scattering on the two nucleons. Higher-order rescattering corrections are evaluated using coupled channels with K- and (K) over bar (0) within the integral form of the fixed centre approximation to the Faddeev equations. The higher-order corrections involving intermediate pions and hyperons are found negligible. (C) 2001 Elsevier Science B.V. All rights reserved.

    Kamalov, Sabit S. Oset Báguena, Eulogio Ramos Gómez, Àngels 2001 Chiral unitary approach to the K--deuteron scattering length Nuclear Physics A 690 4 494 508
http://dx.doi.org/10.1016/S0375-9474(00)00709-0
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