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19972008
most citedImproved dispersion relations for γγ\to π^0π^0

60 citations · 157 across the 9 of their papers we have counts for

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hep-ph1997

Chiral symmetry amplitudes in the S-wave isoscalar and isovector channels and the sigma, f_0(980), a_0(980) scalar mesons (HADRON'97)

J. A. Oller, E. Oset

We use a non-perturbative approach which combines coupled channel Lippmann-Schwinger equations with meson-meson potentials provided by the lowest order chiral Lagrangian. By means…