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Improved fixed center approximation of the Faddeev equations for the (K)over-bar N N system with S=0

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dc.contributor.author	Bayar, Melahat
dc.contributor.author	Oset Báguena, Eulogio
dc.date.accessioned	2015-08-19T12:29:41Z
dc.date.available	2015-08-19T12:29:41Z
dc.date.issued	2012
dc.identifier.uri	http://hdl.handle.net/10550/46689
dc.description.abstract	We extend the Fixed Center Approximation (FCA) to the Faddeev Equations for the K¯NN system with S=0, including the charge exchange mechanisms in the K¯ rescattering which have been ignored in former works within the FCA. We obtain similar results to those found before, but the binding is reduced by 6 MeV. At the same time we also evaluate the explicit contribution the πNΣ intermediate state in the three body system and find that it produces and additional small decrease in the binding of about 3 MeV. The system appears bound by about 35 MeV and the width omitting two body absorption, is about 50 MeV.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics A, 2012, vol. 883, p. 57-68
dc.source	Bayar, Melahat Oset Báguena, Eulogio 2012 Improved fixed center approximation of the Faddeev equations for the (K)over-bar N N system with S=0 Nuclear Physics A 883 57 68
dc.subject	Física
dc.title	Improved fixed center approximation of the Faddeev equations for the (K)over-bar N N system with S=0
dc.type	journal article	es_ES
dc.date.updated	2015-08-19T12:29:41Z
dc.identifier.doi	http://dx.doi.org/10.1016/j.nuclphysa.2012.04.005
dc.identifier.idgrec	080191
dc.rights.accessRights	open access	es_ES