Study of interference effects on the $Lambda(1405)$ line shape measured by HADES in p_s16p collisions
Fabbietti, L.
Keywords
Lambda(1405): model | HADES | p p: interaction | scattering amplitude: interference | amplitude analysis: pole | 3.5 GeV-kin
Abstract
In this work we investigate the possible interference effects between the _s13_s17923_s19(1405) and the non-resonant final state in p_s16p reactions at 3.5 GeV beam kinetic energy measured by the HADES collaboration. The two poles nature of the _s13_s17923_s19(1405), which is supported by most of the theoretical models, are parametrized within a simplified phenomenological model with Breit-Wigner functions to evaluate the interference effects. The model is adjusted such as to be in accordance with the theoretical prediction for the _s13_s17923_s19(1405) in p_s16p collisions.
