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

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dc.creatorNieves, J.
dc.creatorGarcia-Recio, C.
dc.creatorSalcedo, L. L.
dc.creatorMagas, V.
dc.creatorRamos, A.
dc.creatorMizutani, T.
dc.creatorToki, H.
dc.date2008-02-12
dc.date2008-02-13
dc.date.accessioned2026-07-07T11:55:59Z
dc.date.available2026-07-07T11:55:59Z
dc.descriptionConsistent 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--wave negative 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 main features 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.descriptionPresented at Chiral07: Chiral Symmetry in Hadron and Nuclear Physics November 13-16, 2007, Osaka University, Japan
dc.identifierhttps://arxiv.org/abs/0802.1602
dc.identifierhttp://arxiv.org/abs/0802.1602
dc.identifierMod.Phys.Lett.A23:2297-2300,2008
dc.identifierdoi:10.1142/S021773230802923X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205430
dc.subjectHigh Energy Physics - Phenomenology
dc.titleChiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries
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