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hep-ph2004
Computation of Gröbner Bases for Two-Loop Propagator Type Integrals
O. V. Tarasov
The Gröbner basis technique for calculating Feynman diagrams proposed in [O.V. Tarasov, Acta Physica Polonica, v. B29 (1998) 2655] is applied to the two-loop propagator type integr…
hep-ph2004
Analytical Result for the Two-Loop QCD Correction to the Decay H --> 2 gamma
J. Fleischer, O. V. Tarasov, V. O. Tarasov
An analytic formula for the two-loop QCD correction of the decay H --> 2 gamma is presented. To evaluate all master integrals a `Risch-like' algorithm was exploited.