Chiral unitary approach to meson meson and meson - baryon interactions and nuclear applications
By J. A. Oller, E. Oset, À. Ramos. 2000
162 citations recorded by the source corpus.
Abstract 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 of a meson and a baryon appear in the initial or final state are shown. Implications in several nuclear problems are also discussed.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e730fd1d95ba523631c83f37cf07c5edef870591
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In Nuclear and High Energy Physics
Citations in the corpus
- Heavy-quark QCD exotica (2016, background): “physical ingredient one can use to extend the range of usefulness of such calculations is the unitarity of the scattering matrix [83].”
- Exotics: Heavy pentaquarks and tetraquarks (2017, methodology): “For a detailed review of the scalar nonet, covering various dynamical frameworks, such as dispersion relations and chiral lagrangians, we refer to the reviews [304, 305].”
- Strangeness-changing scalar form factors (2001, background): “At tree level, this Lagrangian encodes the large–Nc properties of QCD [10, 11], in the approximation [12] of keeping only the dominant lowest–mass resonance multiplets.”
- Hadronic molecules (2017, background): “…picture (Jaffe, 1977a) or in a scenario where these states are dynamically generated from the meson-meson interaction (Janssen et al., 1995; Oller et al., 2000; Weinstein and Isgur, 1982), with the f0(980) and the a0(980) coupling strongly to the K̄K channel with isospin 0 and 1,…”