Classical pion fields and multiparticle production

Jean-Paul Blaizot (1)

1 SPhT - Service de Physique Théorique

High multiplicity hadronic collisions could lead to the formation of a transient classical pion field. The soft pions produced in the decay of such a classical field exhibit characteristic and measurable correlations. To allow for a discussion of such questions on a concrete example, we present an analytic solution of the classical non linear $ \sigma $ model with boundary conditions appropriate to hadronic collisions at asymptotically high energies. A short discussion of various other approaches being presently developed is also given.

Domaines: Physique Générale [physics.gen-ph]

Jean-Paul Blaizot. Classical pion fields and multiparticle production. Workshop on Soft Physics and Fluctuations, 1993, Cracow, Poland. ⟨hal-00168846⟩