The resummed quark form factor in dimensional regularization

Details The resummed quark form factor in dimensional regularization The resummed quark form factor in dimensional regularization

2000-08-30

arxiv.org/abs/hep-ph/0008311v1

Nucl.Phys.Proc.Suppl. 96 (2001) 84-88

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX with espcrc2.sty, talk given at QCD 00, Montpellier (France), 6-13/7/2000

Scientific paper

10.1016/S0920-5632(01)01113-6

The resummed expression for the quark form factor illustrates the fact that dimensional continuation provides a regularization not only for ultraviolet and infrared singularities of fixed order QCD amplitudes, but also for the Landau pole arising in resummed calculations. Explicit renormalization group invariant analytic expressions for the logarithm of the form factor are given up to two-loop order in the QCD beta function.

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