On the Strangeness -1 S-wave Meson-Baryon Scattering

dc.creatorOller, Jose A.
dc.date2006-03-17
dc.date.accessioned2026-07-07T10:44:52Z
dc.date.available2026-07-07T10:44:52Z
dc.descriptionWe consider meson-baryon interactions in S-wave with strangeness -1. This is a non-perturbative sector populated by plenty of resonances interacting in several two-body coupled channels.We study this sector combining a large set of experimental data. The recent experiments are remarkably accurate demanding a sound theoretical description to account for all the data. We employ unitary chiral perturbation theory up to and including \cal{O}(p^2) to accomplish this aim. The spectroscopy of our solutions is studied within this approach, discussing the rise from the pole content of the two Λ(1405) resonances and of the Λ(1670), Λ(1800), Σ(1480), Σ(1620) and Σ(1750). We finally argue about our preferred solution.
dc.description35 pages, 7 figures, 12 tables
dc.identifierhttps://arxiv.org/abs/hep-ph/0603134
dc.identifierhttp://arxiv.org/abs/hep-ph/0603134
dc.identifierEur.Phys.J.A28:63-82,2006
dc.identifierdoi:10.1140/epja/i2006-10011-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182747
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleOn the Strangeness -1 S-wave Meson-Baryon Scattering
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