On the Renormalization of Feynman Integrals
作者:
M. J. Westwater,
期刊:
Fortschritte der Physik
(WILEY Available online 1969)
卷期:
Volume 17,
issue 1
页码: 1-71
ISSN:0015-8208
年代: 1969
DOI:10.1002/prop.19690170102
出版商: WILEY‐VCH Verlag
数据来源: WILEY
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
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