EPS HEP 2015

Confirmation of the $f_0(500)$ existence by pion scalar form factor and also the correct values of $f_0(500)$ mass and width from it

Not scheduled

20m

poster Flavour Physics and Fundamental Symmetries

Speaker

Prof. Stanislav Dubnicka (Inst.of Physics SAS, Bratislava, Slovakia)

Description

The pion scalar form factor phase representation derived from the first principles together with unprecise experimental information on the S-wave isoscalar $\pi\pi$ scattering phase shift in elastic region is sufficient for a confirmation of $f_0(500)$ meson existence in a model independent way. However, for determination of correct mass and width of $f_0(500)$ in the framework of such fully solvable mathematical scheme the data with theoretical errors to be generated by the Garcia-Martín-Kaminski-Pela'es-Yndurain Roy-like equations should be employed.