ar X iv : h ep - p h / 97 10 22 2 v 1 2 O ct 1 99 7 TOWARDS AUTOMATIC ANALYTIC EVALUATION OF DIAGRAMS WITH MASSES
نویسندگان
چکیده
A method to calculate two-loop self-energy diagrams of the Standard Model is demonstrated. A direct physical application is the calculation of the two-loop electroweak contribution to the anomalous magnetic moment of the muon 1 2 (g − 2) µ. Presently, we confine ourselves to a " toy " model with only µ, γ and a heavy neutral scalar particle (Higgs). The algorithm is implemented as a FORM-based program package. For generating and automatically evaluating any number of two-loop self-energy diagrams, a special C-program has been written. This program creates the initial FORM-expression for every diagram generated by QGRAF, executes the corresponding subroutines and sums up the final results. 1 Basic points of this paper have been briefly presented at The International Workshop AIHENP '96 [1] 2
منابع مشابه
ar X iv : h ep - p h / 97 10 22 9 v 1 2 O ct 1 99 7 SLAC - PUB - 7663 October 1997 Z ′ INVESTIGATIONS AT FUTURE LEPTON
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