Singular Classical Solutions and Tree Multiparticle Cross Sections in Scalar Theories

Abstract

We consider the features of multiparticle tree cross sections in scalar theories in the framework of a semiclassical approach. These cross sections at large multiplicities have exponential form, and the properties of the exponent in different regimes are discussed.

arXiv comment11 pages, one postcript figure; To appear in Proc. Xth Int. Workshop on high energy physics and quantum field theory, Zvenigorod, 1995

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