Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-05-07
Nucl.Phys.B505:40-64,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex, 38 pages, 44 ps-figures. The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.p
Scientific paper
10.1016/S0550-3213(97)00481-1
In this paper the three-loop polarization functions \Pi(q^2) are calculated
for the cases of an external vector, axial-vector, scalar or pseudo-scalar
current. Results are presented for the imaginary part which directly leads to
the cross section $\sigma(e^+e^- \to Z \to hadrons)$ and to the Higgs decay
rates, respectively.
Chetyrkin K. G.
Kuhn Johann H.
Steinhauser Matthias
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