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Teoreticheskaya i Matematicheskaya Fizika, 1985, Volume 62, Number 3, Pages 345–358
(Mi tmf4652)
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This article is cited in 31 scientific papers (total in 31 papers)
An approach to the calculation of many-loop massless Feynman integrals
S. G. Gorishnii, A. P. Isaev
Abstract:
A generalization of the identity of dimensionless regularization,
$\int d^{D}k(k^2)^{-\alpha}=0$, $\alpha\ne D/2$
is proposed. The generalization is used to divide the complete set of dimensionally
(and analytically) regularized Feynman integrals with one external momentum into
classes of equal integrals, and also for calculating some of them. A nontrivial
symmetry of the propagator integrals is revealed, on the basis of which a complete
system of functional equations for determining two-loop integrals is derived.
Possible generalizations of these equations are discussed.
Received: 10.04.1984
Citation:
S. G. Gorishnii, A. P. Isaev, “An approach to the calculation of many-loop massless Feynman integrals”, TMF, 62:3 (1985), 345–358; Theoret. and Math. Phys., 62:3 (1985), 232–240
Linking options:
https://www.mathnet.ru/eng/tmf4652 https://www.mathnet.ru/eng/tmf/v62/i3/p345
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Abstract page: | 514 | Full-text PDF : | 192 | References: | 80 | First page: | 1 |
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