Mathieu, VincentGuzmán Varela, Johan Sebastián2023-07-252023-07-252023-06https://hdl.handle.net/2445/201122Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2023, Tutor: Vincent MathieuThe existence of exotic mesons, particularly hybrid mesons, remains a subject of investigation. Among these, the meson π1 with JPC = 1 −+ is anticipated to be the lightest. In this study, we examine the reaction η( ′ )π → η( ′ )π as π1 couples to the involved particles. By employing dispersion relations for various channels of this reaction, incorporating Regge forms, and conducting a partial wave expansion in both the forward and backward directions of the outgoing particles, we estimate the P-wave contribution associated with the purported π1 meson.5 p.application/pdfengcc-by-nc-nd (c) Guzmán, 2023http://creativecommons.org/licenses/by-nc-nd/3.0/es/Mesons (Física nuclear)Dispersió (Física nuclear)Treballs de fi de grauMesons (Nuclear physics)Scattering (Nuclear physics)Bachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess