Two photon couplings of the lightest isoscalars from BELLE data
arXiv:1403.7514 · doi:10.1016/j.physletb.2014.07.005
Abstract
Amplitude Analysis of two photon production of $ÏÏ$ and ${\overline K}K$, using S-matrix constraints and fitting all available data, including the latest precision results from Belle, yields a single partial wave solution up to 1.4 GeV. The two photon couplings of the $Ï/f_0(500)$, $f_0(980)$ and $f_2(1270)$ are determined from the residues of the resonance poles.
11 pages, 3 figures, extended for details