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preprints:1997:ttp97-26 [2016/03/17 11:03] (current)
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 +====== TTP97-26 $\alpha_s(m_Z)$ from tau decays with matching conditions at three loops  ====== 
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 +   <hidden TTP97-26  $\alpha_s(m_Z)$ from tau decays with matching conditions at three loops  > Using the recent four-loop calculations of the QCD beta-function and 
 + the three-loop matching coefficients we study the induced error in 
 + $\alpha_s(m_Z)$ obtained from $\alpha_s(m_tau)$ due to the evolution  
 + procedure. We show that, when consistent matching and running is used 
 + at this order, these errors are pushed below 0.0005 in $\alpha_s(m_Z)$.  
 +  
 + </hidden> 
 +|**German Rodrigo (Karlsruhe U.), Antonio Pich, Arcadi Santamaria (Valencia U.)**  |  
 +|** Phys. Lett. B 424 367-374 1998  **  | 
 +| {{preprints:1997:ttp97-26.pdf|PDF}} {{preprints:1997:ttp97-26.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9707474|arXiv]]   | 
 +| |