Ramos Gómez, ÀngelsMarsé Valera, Josep Arnau2021-09-292021-09-292021-02https://hdl.handle.net/2445/180310Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutora: Àngels Ramos GómezWe study the possibility that some of the four peaks recently observed in the Ξ K− mass spectrum by the LHCb collaboration, or the other four non statistically significant peaks in the higher energy region, could correspond to states with five quarks, structured as meson-baryon molecules. These states emerge from a unitarized s-wave amplitude obtained from an appropriate effective meson-baryon Lagrangian. To confirm that some of these states are of molecular origin, more statistics would be needed in that energy region.5 p.application/pdfengcc-by-nc-nd (c) Marsé, 2021http://creativecommons.org/licenses/by-nc-nd/3.0/es/BarionsEstats molecularsTreballs de fi de grauBaryonsMolecular stateBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess