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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

dc.contributor.author	Kamalov, Sabit S.
dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Ramos Gómez, Àngels
dc.date.accessioned	2015-09-08T10:16:32Z
dc.date.available	2015-09-08T10:16:32Z
dc.date.issued	2001
dc.identifier.uri	http://hdl.handle.net/10550/46990
dc.description.abstract	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.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics A, 2001, vol. 690, num. 4, p. 494-508
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	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
dc.subject	Física
dc.title	Chiral unitary approach to the K--deuteron scattering length
dc.type	info:eu-repo/semantics/article
dc.date.updated	2015-09-08T10:16:32Z
dc.identifier.doi	http://dx.doi.org/10.1016/S0375-9474(00)00709-0
dc.identifier.idgrec	079389