Accession Number : AD0258254

Title :   UNITARITY CONDITIONS IN TERMS OF PROPAGATION KERNELS

Corporate Author : NAPLES UNIV (ITALY)

Personal Author(s) : CAIANIELLO,E.R. ; UMEZAWA,H. ; PREZIOSI,B.

Report Date : 30 MAR 1961

Pagination or Media Count : 1

Abstract : IF THE GROUP PROPERTY (macroscopic causality of the U-matrix (S-matrix computed between finite initial and final times) is postulated, the proof of its unitarity reduces to a most simple verification on the propagation kernels of the theory. The Appendix gives an explicit proof of that property for electro- and meso-dynamics by means of perturbative expansions, which may be easily generalized. (Author)

Descriptors :   *INELASTIC SCATTERING, *OPERATORS (MATHEMATICS), *QUANTUM THEORY, INTEGRAL EQUATIONS, NUMERICAL INTEGRATION, PARTICLES, PERTURBATION THEORY, PROPAGATION, SCATTERING

Distribution Statement : APPROVED FOR PUBLIC RELEASE