====== TTP96-28 Nonfactorizable QCD and Electroweak Corrections to the Hadronic Z Boson Decay Rate ======
 
 
   <hidden TTP96-28  Nonfactorizable QCD and Electroweak Corrections to the Hadronic Z Boson Decay Rate > We present an analysis of two-loop mixed QCD and electroweak
 corrections to the decay of the Z boson into light quarks. 
 We find that the naive factorization of QCD and electroweak
 corrections does not describe correctly the two-loop effects.
 The nonfactorizable corrections shift the width of the Z boson
 by approximately -0.55(3) MeV and increase the central value of the
 strong coupling constant determined at LEP by 0.001.
 
 </hidden>
|**Andrzej Czarnecki and Johann H. K\"uhn**  | 
|** Phys. Rev. Lett. 77 3955-3958 1996  **  |
| {{preprints:1996:ttp96-28.pdf|PDF}} {{preprints:1996:ttp96-28.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9608366|arXiv]]   |
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