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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.
hep-ph2003
Parallel Computation of Feynman diagrams with DIANA
M. Tentyukov, J. Fleischer
Co-operation of the Feynman DIagram ANAlyzer (DIANA) with the underlying operational system (UNIX) is presented. We discuss operators to run external commands and a recent developm…
hep-ph2002
DIANA and selected applications
J. Fleischer, M. Tentyukov, O. V. Tarasov
New developments concerning the extension of the Feynman diagram analyzer DIANA are presented. We discuss new graphics facilities, different approaches to automation of momenta dis…