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arXiv · hep-ph/9605436

Determination of the chiral pion-pion scattering parameters: a proposal

G. Wanders
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Abstract

An explicitly crossing-symmetric decomposition of the pion-pion scattering amplitudes into low- and high-energy components is established. The high-energy components are entirely determined by absorptive parts at high energies. With the exception of the two leading-order parameters, all the parameters appearing in the one- and two-loop chiral amplitudes are determined by the high-energy components of the exact amplitudes.

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G. Wanders. 1996-05-30. Determination of the chiral pion-pion scattering parameters: a proposal. https://arxiv.org/abs/hep-ph/9605436

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