On Infrared Universality in Massive Theories. Another Example

الأصل · EN

The infrared behaviour of the ϕ³-theory is discussed stressing analogies with the Witten-Seiberg story about N=2 QCD. Though the microscopic theory is apparently not integrable, the effective theory is shown to be integrable at classical level, and a general solution of it in terms of hypergeometric functions is obtained. An effective theory for the multiparticle soft scattering is sketched.