====== TTP09-41 Matching QCD and HQET heavy--light currents at three loops ======
 
 
      <hidden TTP09-41  Matching QCD and HQET heavy--light currents at three loops > We consider the currents formed by a heavy and a light quark within
 Quantum Chromodynamics and compute the matching to Heavy Quark
 Effective
 Theory to three-loop accuracy. As an application we obtain the
 third-order perturbative corrections to ratios
 of $B$-meson decay constants.
 </hidden>
|**S. Bekavac, A.G. Grozin, P. Marquard, J.H. Piclum, D. Seidel, M. Steinhauser**  | 
|** Nucl.Phys.B833:46-63 B833 46-63 2010  **  |
| {{preprints:2009:ttp09-41.pdf|PDF}} {{preprints:2009:ttp09-41.ps|PostScript}} [[http://arxiv.org/abs/0911.3356|arXiv]] [[http://ttp.kit.edu/Progdata/ttp09/ttp09-41|Programs and Data]]   |
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