A. Zee, Quantum Field Theory in a Nutshell · Problem VI.4.2

Field Theory Redux

Physics — QFT

Problem

Calculate the pion-pion scattering amplitude up to quadratic order in the external momenta, using the nonlinear σ\sigma model (3). [Hint: For help, see S. Weinberg, Phys. Rev. Lett. 17: 616, 1966.]

Browse the problem library