摘要:

AbstractAn arbitrary Feynman integral is considered for external momenta in the Euclidean region, the usual rotation of energy contours having been used to write the integral as an integral over Euclidean internal momenta. A compactification of the space of internal momenta is defined, and the Feynman integral is written as the integral of a current on this compact manifold. This presentation of the integral is used to give a proof of the convergence criterion for Feynman integrals, and to show that a well‐defined renormalized integral may be obtained by a subtraction operation or by analytic renormalizatio

ISSN:0015-8208    

DOI:10.1002/prop.19690170102

出版商:WILEY‐VCH Verlag    

年代:1969

数据来源: WILEY

ISSN:0015-8208    

DOI:10.1002/prop.19690170101

出版商:WILEY‐VCH Verlag    

年代:1969

数据来源: WILEY