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Open Access item S-wave Kπ scattering in chiral perturbation theory with resonances

Authors:Jamin, Matthias
Oller, José Antonio
Pich, Antonio
Keywords:Partial-wave analysis, Chiral lagrangians, Meson–meson interactions, Inelastic scattering: two-particle final states
Issue Date:30-Oct-2000
Publisher:Elsevier
Citation:Nuclear Physics B 587(1-3): 331-362 (2000)
Abstract:We present a detailed analysis of S-wave Kπ scattering up to 2 GeV, making use of the resonance chiral Lagrangian predictions together with a suitable unitarisation method. Our approach incorporates known theoretical constraints at low and high energies. The present experimental status, with partly conflicting data from different experiments, is discussed. Our analysis allows to resolve some experimental ambiguities, but better data are needed in order to determine the cross-section in the higher-energy range. Our best fits are used to determine the masses and widths of the relevant scalar resonances in this energy region.
Description:32 páginas, 6 figuras, 2 tablas.-- PACS: 11.80.Et; 12.39.Fe; 13.75.Lb; 13.85.Fb.-- arXiv:hep-ph/0006045v1
Publisher version (URL):http://dx.doi.org/10.1016/S0550-3213(00)00479-X
URI:http://hdl.handle.net/10261/33204
ISSN:0550-3213
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