Radiation of Light Fermions in Heavy Fermion Production
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Recent analytic calculations on the rate for the production of a pair of massive fermions in $e^+ e^-$ annihilation plus real or virtual radiation of a pair of massless fermions are discussed. The contributions for real and virtual radiation are displayed separately. The asymptotic behaviour close to threshold is given in a compact form and an application to the angular distribution of massive quarks close to threshold is presented.
4 pages, latex, uses epsf.sty, invited talk given at the Europhysics Conference on High Energy Physics, Brussels Jul 27 - Aug 2 1995, presented by J.H. Kühn; complete postscript file available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-37/ttp95-37.ps or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/
4 pages, latex, uses epsf.sty, invited talk given at the Europhysics Conference on High Energy Physics, Brussels Jul 27 - Aug 2 1995, presented by J.H. Kühn; complete postscript file available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-37/ttp95-37.ps or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/