Electroweak and finite width corrections to top quark decays into transverse and longitudinal W -bosons
Abstract
We calculate the electroweak and finite width corrections to the decay of an unpolarized top quark into a bottom quark and a W -gauge boson where the helicities of the W are specified as longitudinal, transverse-plus and transverse-minus. Together with the O(αs) corrections these corrections may become relevant for the determination of the mass of the top quark through angular decay measurements.
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