Two-loop QCD corrections to the heavy quark form factors: the vector contributions
Abstract
We present closed analytic expressions of the electromagnetic vertex form factors for heavy quarks at the two-loop level in QCD for arbitrary momentum transfer. The calculation is carried out in dimensional regularization. The electric and magnetic form factors are expressed in terms of 1-dimensional harmonic polylogarithms of maximum weight 4.
- Publication:
-
Nuclear Physics B
- Pub Date:
- January 2005
- DOI:
- 10.1016/j.nuclphysb.2004.10.059
- arXiv:
- arXiv:hep-ph/0406046
- Bibcode:
- 2005NuPhB.706..245B
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 79 pages, 3 figures. Version accepted by Nucl. Phys. B. All the results in Section 6 of the paper are available in an electronic form in the file formulas.inc