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preprints:1997:ttp97-33 [2016/03/17 11:03] (current)
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 +====== TTP97-33 Non-Abelian Dipole Radiation and the Heavy Quark Expansion ====== 
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 +   <hidden TTP97-33  Non-Abelian Dipole Radiation and the Heavy Quark Expansion > Dipole radiation in QCD is derived to the second order in 
 + $\alpha_s$. A power-like evolution of the spin-singlet heavy quark 
 + operators is obtained to the same accuracy. We give an ${\cal 
 + O}(\alpha_s^2)$ relation between the short-distance low-scale running 
 + heavy quark mass and the $\overline{\rm MS}$ mass.  We discuss the 
 + properties of an effective QCD coupling $\alpha_s^{(d)}(E)$ which 
 + governs the dipole radiation. We argue that this coupling is 
 + advantageous for describing heavy quark physics. 
 + </hidden> 
 +|**Andrzej Czarnecki, Kirill Melnikov, and Nikolai Uraltsev**  |  
 +|** Phys. Rev. Lett. 80 3189 1998  **  | 
 +| {{preprints:1997:ttp97-33.pdf|PDF}} {{preprints:1997:ttp97-33.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9708372|arXiv]]   | 
 +| |