Twoloop 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 twoloop 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 1dimensional harmonic polylogarithms of maximum weight 4.
 Publication:

Nuclear Physics B
 Pub Date:
 January 2005
 DOI:
 10.1016/j.nuclphysb.2004.10.059
 arXiv:
 arXiv:hepph/0406046
 Bibcode:
 2005NuPhB.706..245B
 Keywords:

 High Energy Physics  Phenomenology
 EPrint:
 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