# Differences

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+ | ====== TTP95-03 QCD Corrections to the rho Parameter ====== | ||

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+ | <hidden TTP95-03 QCD Corrections to the rho Parameter > The three-loop QCD corrections to the $\rho$ parameter from top and | ||

+ | bottom quark loops are calculated. | ||

+ | The result differs from the one recently calculated | ||

+ | by Avdeev et al. As function of the pole mass the numerical value is given by | ||

+ | $\drho=\frac{3G_F M_t^2}{8\sqrt{2}\pi^2}(1- 2.8599\, \api | ||

+ | - 14.594\, (\api)^2 )$. | ||

+ | </hidden> | ||

+ | |**K.G. Chetyrkin, J.H. Kuehn, M. Steinhauser** | | ||

+ | |** Phys. Lett. B351 331--338 1995 ** | | ||

+ | | {{preprints:1995:ttp95-03.pdf|PDF}} {{preprints:1995:ttp95-03.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9502291|arXiv]] | | ||

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