Recognition: unknown
Low Energy Sum Rules For Pion-Pion Scattering and Threshold Parameters
classification
✦ hep-ph
keywords
parametersthresholdpion-pionrulesscatteringabsorptiveconstraintsconvergent
read the original abstract
We derive a set of sum rules for threshold parameters of pion-pion scattering whose dispersion integrals are rapidly convergent and are dominated by S- and P-waves absorptive parts. Stringent constraints on some threshold parameters are obtained.
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