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Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries

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Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries

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dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.contributor.author	García Recio, Carmen
dc.contributor.author	Salcedo, Lorenzo Luis
dc.contributor.author	Magas, Volodymyr
dc.contributor.author	Ramos Gómez, Àngels
dc.contributor.author	Mizutani, Tetsuro
dc.contributor.author	Toki, Hiroshi
dc.date.accessioned	2014-10-23T07:33:52Z
dc.date.available	2014-10-23T07:33:52Z
dc.date.issued	2008
dc.identifier.citation	Nieves Pamplona, Juan Miguel García Recio, Carmen Salcedo, Lorenzo Luis Magas, Volodymyr Ramos, A. Mizutani, Tetsuro Toki, Hiroshi 2008 Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries Modern Physics Letters A 23 27-30 2297 2300
dc.identifier.uri	http://hdl.handle.net/10550/39309
dc.description.abstract	Consistent SU(6) and SU(8) spin-flavor extensions of the SU(3) flavor Weinberg-Tomozawa (WT) meson-baryon chiral Lagrangian are constructed, which incorporate vector meson degrees of freedom. In the charmless sector, the on-shell approximation to the Bethe-Salpeter (BS) approach successfully reproduces previous SU(3) WT results for the lowest-lying s-wavene gative parity baryon resonances. It also provides some information on the dynamics of heavier ones and of the lightest d-wave negative parity resonances, as e.g. the Lambda(1520). For charmed baryons the scheme is consistent with heavy quark symmetry, and our preliminary results in the strangeness-less charm C = +1 sector describe the mainfeatures of the three-star J(P) = 1/2(-) Lambda(c)(2595) and J(P) = 3/2(-) Lambda(c)(2625) resonances. We also find a second broad J(P) =1/2 state close to the Lambda(c)(2595).
dc.language.iso	eng
dc.relation.ispartof	Modern Physics Letters A, 2008, vol. 23, num. 27-30, p. 2297-2300
dc.subject	Física
dc.title	Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries
dc.type	journal article	es_ES
dc.date.updated	2014-10-23T07:33:52Z
dc.identifier.doi	10.1142/S021773230802923X
dc.identifier.idgrec	099905
dc.rights.accessRights	open access	es_ES