Running of the heavy quark production current and 1/k potential in QCD

Details Running of the heavy quark production current and 1/k potential in QCD Running of the heavy quark production current and 1/k potential in QCD

2000-03-13

arxiv.org/abs/hep-ph/0003107v3

Phys.Rev.D63:054004,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, journal version

Scientific paper

10.1103/PhysRevD.63.054004

The 1/k contribution to the heavy quark potential is first generated at one loop order in QCD. We compute the two loop anomalous dimension for this potential, and find that the renormalization group running is significant. The next-to-leading-log coefficient for the heavy quark production current near threshold is determined. The velocity renormalization group result includes the alpha_s^3 ln^2(alpha_s) ``non-renormalization group logarithms'' of Kniehl and Penin.

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