S-11-N(1535) and -N(1650) resonances in meson-baryon unitarized coupled channel chiral perturbation theory
NAGIOS: RODERIC FUNCIONANDO

S-11-N(1535) and -N(1650) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

DSpace Repository

S-11-N(1535) and -N(1650) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

Show simple item record

dc.contributor.author Nieves Pamplona, Juan Miguel
dc.contributor.author Ruiz Arriola, Enrique
dc.date.accessioned 2014-10-17T10:19:48Z
dc.date.available 2014-10-17T10:19:48Z
dc.date.issued 2001
dc.identifier.uri http://hdl.handle.net/10550/39239
dc.description.abstract The s-wave meson-baryon scattering is analyzed for the strangeness S = 0 sector in a Bethe-Salpeter coupled channel formalism incorporating chiral symmetry. Four channels have been considered: piN, etaN, K Lambda, K Sigma. The needed two-particle irreducible matrix amplitude is taken from lowest order chiral perturbation theory in a relativistic formalism and low energy constants are fitted to the elastic piN phase shifts and the pi (-) p-->etan and pi (-) p-->K-0 Lambda cross section data. The position of the complex poles in the second Riemann sheet of the scattering amplitude determines masses and widths of the S-11-N(1535) and -N(1650) resonances, in reasonable agreement with experiment. A good overall description of data, from piN threshold up to 2 GeV, is achieved, keeping in mind that the two-pion production channel has not been included.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2001, vol. 64, num. 11, p. 116008
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Nieves Pamplona, Juan Miguel Ruiz Arriola, Enrique 2001 S-11-N(1535) and -N(1650) resonances in meson-baryon unitarized coupled channel chiral perturbation theory Physical Review D 64 11 116008
dc.subject Física
dc.title S-11-N(1535) and -N(1650) resonances in meson-baryon unitarized coupled channel chiral perturbation theory
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-10-17T10:19:48Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.64.116008
dc.identifier.idgrec 068600

View       (1.444Mb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics