Double fermionic contributions to the heavy-quark vacuum polarization

Details Double fermionic contributions to the heavy-quark vacuum polarization Double fermionic contributions to the heavy-quark vacuum polarization

2007-12-17

arxiv.org/abs/0712.2762v1

JHEP0807:001,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures

Scientific paper

10.1088/1126-6708/2008/07/001

We compute the virtual O(\alpha_s^3 n_f^2) corrections to the heavy quark
vector current correlator in terms of expansions in the external momentum and
as an exact numerical solution. As a byproduct, the available high-energy
expansion at the three-loop level is extended.

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