====== TTP09-17 Reconstruction of heavy quark current correlators at O(&alpha;<sub>s</sub><sup>3</sup>) ======
 
 
      <hidden TTP09-17  Reconstruction of heavy quark current correlators at O(&alpha;<sub>s</sub><sup>3</sup>) > We construct approximate formulas for the O(&alpha;<sub>s</sub><sup>3</sup>) QCD contributions to
 vector, axial-vector, scalar and pseudo-scalar quark current correlators, which are valid for
 arbitrary values of momenta and masses. The derivation 
 is based on conformal mapping and the Pad&eacute; approximation procedure and
 incorporates known expansions in the low energy, threshold and high energy
 regions. We use our results to estimate additional terms in 
 these expansions.
 </hidden>
|**Y. Kiyo, A. Maier, P. Maierh&ouml;fer, P. Marquard**  | 
|**  Nuclear Physics  B 823 269-287 2009  **  |
| {{preprints:2009:ttp09-17.pdf|PDF}} {{preprints:2009:ttp09-17.ps|PostScript}} [[http://arxiv.org/abs/0907.2120|arXiv]] [[http://ttp.kit.edu/Progdata/ttp09/ttp09-17|Programs and Data]]   |
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