Estudio de la espectroscopía de bariones-mesones utilizando un modelo de quarks constituyentes : Teoría de Scaterring aplicada al sistema mesón-barión

Abstract

This research work aims to articulate a theoretical framework for the exploration of Quan tum Chromodynamics (QCD) within the domain of low-energy range. To this end, the Constituent Quark Model, as developed by the Nuclear Physics Group at the University of Salamanca, was employed. With this model, a particular system, the meson-baryon (Kaon-Nucleon), was studied through its constituents (quarks), constituting a 5-body sys tem. The potential of this system was meticulously computed and subsequently applied within the framework of Scattering Theory. Our endeavor yielded a comprehensive des cription of both elastic and charge exchange cross-sections within a range of up to 450 MeV. These results were compared with experimental data. Therefore, we can conclude that the model is valid to describe these processes (KN → KN) in the low-energy range.