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+====== TTP95-17 HADRON RADIATION IN TAU PRODUCTION AND THE LEPTONIC Z BOSON DECAY RATE ======
+   <hidden TTP95-17  HADRON RADIATION IN TAU PRODUCTION AND THE LEPTONIC Z BOSON DECAY RATE > Secondary radiation of hadrons from a tau pair produced
+ in electron positron collisions may constitute an
+ important obstacle for precision measurements of
+ the production cross section and of branching ratios.
+ The rate for real and virtual radiation is calculated
+ and various distributions are presented.
+ For Z decays a comprehensive analysis is performed which
+ incorporates real and virtual radiation of
+ leptons. The corresponding results are also given for
+ primary electron and muon pairs.
+ Compact analytical formulae are presented for
+ entirely leptonic configurations.
+ Measurements of $Z$ partial decay rates which eliminate
+ all hadron and lepton radiation are about 0.3\% to 0.4\%
+ lower than totally inclusive measurements, a consequence of
+ the ${\cal O}(\alpha^2)$ negative virtual corrections which
+ are enhanced by the third power of a large logarithm.
+ </hidden>
+|**A.H. Hoang, J.H. K\"uhn and T. Teubner,**  |
+|** Nucl. Phys. B455 3-20 1995  **  |
+| {{preprints:1995:ttp95-17.pdf|PDF}} {{preprints:1995:ttp95-17.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/9507255|arXiv]]   |
+| |