Revisit to Low Mass Scalar Mesons via Unitarized Chiral Perturbation Theory

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dc.creatorUehara, M.
dc.date2002-04-02
dc.date.accessioned2026-07-07T03:46:45Z
dc.date.available2026-07-07T03:46:45Z
dc.descriptionWe study how the scalar mesons below 1 GeV are generated through the Oller-Oset-Pelaez version of the multichannel inverse amplitude method applied to the chiral perturbation theory. We find out that the f0(980) state is certainly generated as a bound state resonance below the K-Kbar threshold, while the a0(980) state, generated through the channel coupling between the pi-eta and K-Kbar channels, appears as a cusp at the K-Kbar threshold. The so-called sigma(500) and kappa(900) need not be interpreted as the conventional resonances.
dc.description14 pages, 8 epsf figures, LaTeX2e
dc.identifierhttps://arxiv.org/abs/hep-ph/0204020
dc.identifierhttp://arxiv.org/abs/hep-ph/0204020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41409
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRevisit to Low Mass Scalar Mesons via Unitarized Chiral Perturbation Theory
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