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

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.

Comments: 14 pages plain latex, 2 figures, uuencoded, tarred and compressed