Three-pion scattering in chiral perturbation theory


  • Tomas Husek Lund University



Chiral perturbation theory, pions, hadron-hadron interactions, scattering amplitudes


We present the results on the relativistic six-pion scattering amplitude at low energy, calculated at O(p 4 ) within the framework of the massive O(N) nonlinear sigma model extended to the next-to-leading order in the chiral counting. For N = 3, this approach corresponds to the two(- quark)-flavor Chiral Perturbation Theory. We also present the expressions for the pion mass, pion decay constant and the four-pion amplitude in the case of N (meson) flavors at O(p 4 ).


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How to Cite

Husek T. Three-pion scattering in chiral perturbation theory. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 13 [cited 2022 Dec. 9];3(3):0308073 1-5. Available from: