NAGIOS: RODERIC FUNCIONANDO

Low lying S=-1 excited baryons and chiral symmetry

Repositori DSpace/Manakin

dc.contributor.author	Oset Báguena, Eulogio
dc.contributor.author	Ramos Gómez, Àngels
dc.contributor.author	Bennhold, Cornelius
dc.date.accessioned	2015-09-08T10:10:34Z
dc.date.available	2015-09-08T10:10:34Z
dc.date.issued	2002
dc.identifier.citation	Oset Báguena, Eulogio Ramos Gómez, Àngels Bennhold, Cornelius 2002 Low lying S=-1 excited baryons and chiral symmetry Physics Letters B 527 99 105
dc.identifier.uri	http://hdl.handle.net/10550/46964
dc.description.abstract	The s-wave meson-baryon interaction in the S=−1 sector is studied by means of coupled-channels, using the lowest-order chiral Lagrangian and the N/D method to implement unitarity. The loops are regularized using dimensional renormalization. In addition to the previously studied Λ(1405), employing this chiral approach leads to the dynamical generation of two more s-wave hyperon resonances, the Λ(1670) and Σ(1620) states. We make comparisons with experimental data and look for poles in the complex plane obtaining the couplings of the resonances to the different final states. This allows us to identify the Λ(1405) and the Λ(1670) resonances with K¯N and KΞ quasibound states, respectively.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2002, vol. 527, p. 99-105
dc.subject	Física
dc.title	Low lying S=-1 excited baryons and chiral symmetry
dc.type	journal article	es_ES
dc.date.updated	2015-09-08T10:10:34Z
dc.identifier.doi	10.1016/S0370-2693(01)01523-4
dc.identifier.idgrec	036296
dc.rights.accessRights	open access	es_ES