Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-02-18
Prog.Part.Nucl.Phys. 45 (2000) 157-242
Physics
High Energy Physics
High Energy Physics - Phenomenology
85 pages, Latex, Review paper to appear in Prog. Part. Nucl. Phys., vol. 45
Scientific paper
10.1016/S0146-6410(00)00104-6
We report on recent nonperturbative techniques that combine the information of chiral Lagrangians (with and without resonances) with unitarity in coupled channels and other requirements of the S-matrix theory of the strong interactions. As a result, the region of applicability of such techniques is much larger than the one of Chiral Perturbation Theory allowing one to study also resonance physics. Applications to meson-meson and meson-baryon scattering, as well as to problems where pairs of mesons or a meson and a baryon appear in the initial or final state are shown. Implications in several nuclear problems are also discussed.
Asensio Ramos Andrés
Oller Jose Antonio
Oset Eulogio
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