Radiation of Light Fermions in Heavy Fermion Production
Abstract
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.
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