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Study of a possible S =+1 dynamically generated baryonic resonance

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Study of a possible S =+1 dynamically generated baryonic resonance

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dc.contributor.author Sarkar, S.
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Vicente Vacas, Manuel José
dc.date.accessioned 2015-09-08T07:33:09Z
dc.date.available 2015-09-08T07:33:09Z
dc.date.issued 2005
dc.identifier.citation Sarkar, S. Oset Báguena, Eulogio Vicente Vacas, Manuel José 2005 Study of a possible S =+1 dynamically generated baryonic resonance European Physical Journal A 24 2 287 292
dc.identifier.uri http://hdl.handle.net/10550/46938
dc.description.abstract Starting from the lowest-order chiral Lagrangian for the interaction of the baryon decuplet; with the octet of pseudoscalar mesons we find an attractive interaction in the Delta K channel with L = 0 and 1 = 1; while the interaction is repulsive for I = 2. The attractive interaction leads to a pole in the second Riemann sheet of the complex plane and manifests itself in a large strength of the Delta K scattering amplitude close to the Delta K threshold, which is not the case for I = 2. However, we also make a study of uncertainties in the model and conclude that the existence of this pole depends sensitively upon the input used and can disappear within reasonable variations of the input parameters. We take advantage to study the stability of the other poles obtained for the 3/2(-) dynamically generated resonances of the model and conclude that they are stable and not contingent to reasonable changes in the input of the theory.
dc.language.iso eng
dc.relation.ispartof European Physical Journal A, 2005, vol. 24, num. 2, p. 287-292
dc.subject Física
dc.title Study of a possible S =+1 dynamically generated baryonic resonance
dc.type journal article es_ES
dc.date.updated 2015-09-08T07:33:09Z
dc.identifier.doi 10.1140/epja/i2005-10006-6
dc.identifier.idgrec 025707
dc.rights.accessRights open access es_ES

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