DUFFIN–KEMMER–PETIAU THEORY IN THE CAUSAL APPROACH

Author:

LUNARDI J. T.1,PIMENTEL B. M.1,VALVERDE J. S.1,MANZONI L. A.2

Affiliation:

1. Instituto de Física Teórica, Universidade Estadual Paulista, Rua Pamplona 145, CEP 01405-900, São Paulo, SP, Brazil

2. Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, CEP 05315-970, São Paulo, SP, Brazil

Abstract

In this paper we consider the scalar sector of Duffin–Kemmer–Petiau theory in the framework of Epstein–Glaser causal method. We calculate the lowest order distributions for Compton scattering, vacuum polarization, self-energy and vertex corrections. By requiring gauge invariance of the theory we recover, in a natural way, the scalar propagator of the usual effective theory.

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

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