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Charmed and strange baryon resonances with heavy-quark spin symmetry

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Charmed and strange baryon resonances with heavy-quark spin symmetry

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dc.contributor.author	Romanets, Olena
dc.contributor.author	Tolós Rigueiro, Laura
dc.contributor.author	García Recio, Carmen
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.contributor.author	Salcedo, Lorenzo Luis
dc.contributor.author	Timmermans, Rob
dc.date.accessioned	2014-10-28T12:48:28Z
dc.date.available	2014-10-28T12:48:28Z
dc.date.issued	2012
dc.identifier.citation	Romanets, Olena Tolos, L. García Recio, Carmen Nieves Pamplona, Juan Miguel Salcedo, Lorenzo Luis Timmermans, Rob 2012 Charmed and strange baryon resonances with heavy-quark spin symmetry Physical Review D 85 11 114032
dc.identifier.uri	http://hdl.handle.net/10550/39438
dc.description.abstract	We study charmed and strange baryon resonances that are generated dynamically by a unitary baryon-meson coupled-channel model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry plus a suitable symmetry breaking. The model produces resonances with negative parity from s-wave interaction of pseudoscalar and vector mesons with 1/2+ and 3/2+ baryons. Resonances in all the isospin, spin, and strange sectors with one, two, and three charm units are studied. Our results are compared with experimental data from several facilities, such as the CLEO, Belle or BaBar Collaborations, as well as with other theoretical models. Some of our dynamically generated states can be readily assigned to resonances found experimentally, while others do not have a straightforward identification and require the compilation of more data and also a refinement of the model. In particular, we identify the Ξc(2790) and Ξc(2815) resonances as possible candidates for a heavy-quark spin symmetry doublet.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2012, vol. 85, num. 11, p. 114032
dc.subject	Física
dc.title	Charmed and strange baryon resonances with heavy-quark spin symmetry
dc.type	journal article	es_ES
dc.date.updated	2014-10-28T12:48:29Z
dc.identifier.doi	10.1103/PhysRevD.85.114032
dc.identifier.idgrec	079677
dc.rights.accessRights	open access	es_ES