Pion scalar form factor and model independent values of $f_0(500)$ and $f_0(980)$ meson parameters

Abstract

The pion scalar form factor along with all existing S-wave iso-scalar $\pi \pi$-scattering phase shift data in the elastic region up to $1{\mathrm{GeV}}^2$ are applied for a determination of the $f_0(500)$ and $f_0(980)$ meson parameters $m_{f_0(500)}=(360\pm 33)\mathrm{MeV}$, ${\Gamma }_{f_0(500)}=(587\pm 85)\mathrm{MeV}$ and $m_{f_0(980)}=(957\pm 77)\mathrm{MeV}$, ${\Gamma }_{f_0(980)}=(164\pm 142)\mathrm{MeV}$ in a model independent way.

arXiv comment13 pages, 3 figures, submitted to Phys.Rev.D

References in corpus (6)

• ππscattering
• Mass and width of the lowest resonance in QCD
• Precise determination of the f0(600) and f0(980) pole parameters from a dispersive data analysis
• A new measurement of K+(e4) decay and the s-wave pi-pi-scattering length a00
• Finding the sigma pole by analytic extrapolation of $\pi \pi$ scattering data
• A partial wave analysis of the ${\pi }^0{\pi }^0$ system produced in ${\pi }^{-}p$ charge exchange collisions

Cited by in corpus (1)

• The scalar, vector and tensor form factors for the pion and kaon from lattice QCD