====== TTP03-34 Master Integrals for the 2-loop QCD virtual corrections to the Forward-Backward Asymmetry ======
 
 
   <hidden TTP03-34  Master Integrals for the 2-loop QCD virtual corrections to the Forward-Backward Asymmetry > We present the Master Integrals needed for the calculation of the 
 two-loop QCD corrections to the forward-backward asymmetry of a 
 quark-antiquark pair produced in electron-positron annihilation events.
 The abelian diagrams entering in the evaluation of the vector form 
 factors were calculated in a previous paper. We consider here the 
 non-abelian diagrams and the diagrams entering in the computation of 
 the axial form factors, for arbitrary space-like momentum transfer $Q^2$ 
 and finite heavy quark mass $m$. Both the UV and IR divergences are 
 regularized in the continuous $D$-dimensional scheme. The Master 
 Integrals are Laurent-expanded around $D=4$ and evaluated by the 
 differential equation method; the coefficients of the 
 expansions are expressed as 1-dimensional harmonic polylogarithms of 
 maximum weight 4.
 </hidden>
|**R. Bonciani, P. Mastrolia and E. Remiddi**  | 
|**  Nucl. Phys. B  690 138-176 2004  **  |
| {{preprints:2003:ttp03-34.pdf|PDF}} {{preprints:2003:ttp03-34.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0311145|arXiv]]   |
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