Two-loop QCD corrections to the heavy quark form-factors: Axial vector contributions

By W. Bernreuther, R. Bonciani, Thomas Gehrmann, R. Heinesch, T. Leineweber, Pierpaolo Mastrolia, Ettore Remiddi. 2004

144 citations recorded by the source corpus.

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.

Subfields: Electrical and Electronic Engineering, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/584c5e4169f13be4fe4df76fcbedd8dbfdc88b27

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. C. Studerus
2. Claude Duhr
3. Herbert Gangl
4. Daniel Maître
5. Thomas Gehrmann

In Nuclear and High Energy Physics

1. Claude Duhr
2. C. Studerus
3. Thomas Gehrmann
4. Gudrun Heinrich
5. A. Ferroglia
6. Daniel Maître
7. John R. Rhodes
8. Herbert Gangl

Citations in the corpus

• From polygons and symbols to polylogarithmic functions (2011, methodology): “higher order corrections to physical observables requires the analytical evaluation of Feynman integrals that can generally be expressed in terms of (special classes of) multiple polylogarithms, e.g. [25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,”
• Two-loop fermionic corrections to heavy-quark pair production: the quark-antiquark channel (2008, background): “Only part of these MIs were available in the literature [32 – 38] from previous two-loop calculations of the heavy quark form factors [39] and amplitudes for Bhabha scattering [29, 30, 40].”