Two photon couplings of the lightest isoscalars from BELLE data

Amplitude Analysis of two photon production of ππ   and 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 σ/f0(500)σ/f0(500), f0(980)f0(980) and f2(1270)f2(1270) are determined from the residues of the resonance poles. These amplitudes are a key input into the newly developed dispersive approach to calculating hadronic light-by-light scattering for (g−2)(g−2) of the muon.