Multiple pion production from an oriented chiral condensate

摘要

We consider an "oriented" chiral condensate produced in the squeezed states of the effective field theory with time- and space-dependent pion mass parameter. We discuss the general properties of the solution, identifying condensate modes and determining the resulting pion distributions. The implementation of the dynamics in the form of sudden perturbation allows us to look for exact solutions. In the region of condensation, the dramatic increase in pion production and charge fluctuations are demonstrated. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 32]