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preprints:2002:ttp02-41 [2016/03/17 11:03] (current)
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 +====== TTP02-41 Towards Order alpha_s^4 Accuracy in tau-decays ====== 
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 +   <​hidden TTP02-41 ​ Towards Order alpha_s^4 Accuracy in tau-decays > Recently computed terms of orders O(\alpha_s^4 n_f^2) in the 
 + ​perturbative series for the tau decay rate, and similar (new) strange 
 + quark mass corrections,​ are used to discuss the validity of various 
 + ​optimization schemes. The results are then employed to arrive at 
 + ​improved predictions for the complete terms order O(\alpha_s^4) and 
 + ​O(\alpha_s^5) in the massless limit as well as for terms due to the 
 + ​strange quark mass.  Phenomenological implications are presented. ​  
 + </​hidden>​ 
 +|**P.A. Baikov, K.G. Chetyrkin and J.H. K\"​uhn** ​ |  
 +|**  Phys.Rev.D ​ 67 074026-074039 2003  **  | 
 +| {{preprints:​2002:​ttp02-41.pdf|PDF}} {{preprints:​2002:​ttp02-41.ps|PostScript}} [[http://​arxiv.org/​abs/​hep-ph/​0212299|arXiv]] ​  | 
 +| |