Institute for Theoretical Particle Physics (TTP)

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preprints:1995:ttp95-41 [2016/03/17 11:03] (current)
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 +====== TTP95-41 Heavy Quark Vacuum Polarization to Three Loops   ====== 
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 +   <hidden TTP95-41  Heavy Quark Vacuum Polarization to Three Loops   > The real and imaginary part of the vacuum polarization function 
 + $\Pi(q^2)$ induced by a massive quark is calculated in perturbative  
 + QCD up to order $\alpha_s^2$. The method is described and the 
 + results are presented. This extends the calculation by  
 + K\"all\'en and Sabry from two to three loops. 
 + </hidden> 
 +|**K.G. Chetyrkin, J.H. Kuehn, M. Steinhauser**  |  
 +|** Phys. Lett. B371 93-98 1996  **  | 
 +| {{preprints:1995:ttp95-41.pdf|PDF}} {{preprints:1995:ttp95-41.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9511430|arXiv]]   | 
 +| |