Institute for Theoretical Particle Physics (TTP)

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preprints:2009:ttp09-17 [2016/03/17 11:03] (current)
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 +====== TTP09-17 Reconstruction of heavy quark current correlators at O(&alpha;<sub>s</sub><sup>3</sup>) ====== 
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 +      <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]]   | 
 +| |