1999/11/12 by E. Oset, Juan Nácher, E. Marco +8 · 3 citations
Physics and Astronomy · #Baryon #Chiral perturbation theory #High-Energy Particle Collisions Research #Lagrangian #Meson #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scattering #Theoretical physics #Unitary state #nucl-th
paper · pdf · doi:10.1016/s0146-6410(00)00073-9
published in Progress in Particle and Nuclear Physics 44, 213-222 (Elsevier BV) · Contribution to the Erice Summer School of Nuclear Physics, 21th course: Electromagnetic Probes and the Structure of Hadrons and Nuclei September 17th - 25th, 1999, Erice/Sicily/Italy
arxiv created 1999/11/12 · openalex publication_date 2000/03/01 · arxiv updated 2011/04/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
By means of a coupled channel non-perturbative unitary approach, it is possible to extend the strong constrains of Chiral Perturbation Theory to higher energies. In particular, it is possible to reproduce the lowest lying resonances in meson-meson scattering up to 1.2 GeV using the parameters of the O(p2) and O(p4) Chiral Lagrangian. The meson baryon sector can also be tackled along similar lines. We report on an update of these results showing some examples of photon induced reactions where the techniques have been recently applied.