Heavy Quark Vacuum Polarisation to Three Loops

Details Heavy Quark Vacuum Polarisation to Three Loops Heavy Quark Vacuum Polarisation to Three Loops

1995-11-28

arxiv.org/abs/hep-ph/9511430v1

Phys.Lett.B371:93-98,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, Latex, figures in a separate file. The complete paper, including figures, is also available via anonymous ftp at f

Scientific paper

10.1016/0370-2693(95)01593-0

The real and imaginary part of the vacuum polarisation function $\Pi(q^2)$
induced by a massive quark is calculated in perturbative QCD up to order
$\alpha_s^2$. The method is described and the results are presented. This
extends the calculation by K\"all\'en and Sabry from two to three loops.

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