Meson-Baryon s-wave Resonances with Strangeness -3

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dc.creatorGarcia-Recio, C.
dc.creatorNieves, J.
dc.creatorSalcedo, L. L.
dc.date2006-10-26
dc.date.accessioned2026-07-07T11:27:13Z
dc.date.available2026-07-07T11:27:13Z
dc.descriptionStarting from a consistent SU(6) extension of the Weinberg-Tomozawa (WT) meson-baryon chiral Lagrangian (Phys. Rev. D74 (2006) 034025), we study the s-wave meson-baryon resonances in the strangeness S=-3 and negative parity sector. Those resonances are generated by solving the Bethe-Salpeter equation with the WT interaction used as kernel. The considered mesons are those of the 35-SU(6)-plet, which includes the pseudoscalar (PS) octet of pions and the vector (V) nonet of the rho meson. For baryons we consider the 56-SU(6)-plet, made of the 1/2+ octet of the nucleon and the 3/2+ decuplet of the Delta. Quantum numbers I(J^P)=0(3/2^-) are suggested for the experimental resonances Omega*(2250)- and Omega*(2380)-. Among other, resonances with I=1 are found, with minimal quark content sss\bar{l}l', being s the strange quark and l, l' any of the the light up or down quarks. A clear signal for such a pentaquark would be a baryonic resonance with strangeness -3 and electric charge of -2 or 0, in proton charge units. We suggest looking for K- Xi- resonances with masses around 2100 and 2240 MeV in the sector 1(1/2^-), and for pi Omega- and K- Xi*- resonances with masses around 2260 MeV in the sector 1(3/2^-).
dc.description3 pages, 1 Postscript figure, 7 tables
dc.identifierhttps://arxiv.org/abs/hep-ph/0610353
dc.identifierhttp://arxiv.org/abs/hep-ph/0610353
dc.identifierEur.Phys.J.A31:540-542,2007
dc.identifierdoi:10.1140/epja/i2006-10241-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196083
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleMeson-Baryon s-wave Resonances with Strangeness -3
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