Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-10-02
Comput.Phys.Commun. 107 (1997) 155-166
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 20 pages, 7 eps-figures included; extended version of talk given at AIHEN96, Lausanne, 1-6 Sept. 1996; detailed descrip
Scientific paper
10.1016/S0010-4655(97)00112-4
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 ${{1/2}(g-2)}_{\mu}$. Presently, we confine ourselves to a ``toy'' model with only $\mu$, $\gamma$ 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.
Avdeev L.
Fleischer Jochem
Kalmykov Mikhail Yu.
Tentyukov M. N.
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