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- W2024339971 abstract "We investigate the semileptonic decays of heavy quarks in the leading non-trivial order in quantum chromodynamics. Effects of gluon corrections and the initial quark Fermi motion on the semileptonic rates and decay distributions are calculated. The resulting lepton energy spectrum for the charm semileptonic decay is compared with data to extract the mass of the charm quark. This is combined with the semileptonic branching ratio to predict the charm-quark lifetime. We find the lepton energy spectrum very stable with respect to gluon corrections. Expected spectra from the semileptonic decays of bottom and top quarks are presented. We also study the semileptonic decay process Q → qℓvℓ + G, involving the emission of a single hard non-collinear gluon. This process should be observable with a branching ratio of a few percent in the decays of top (and heavier) quarks." @default.
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- W2024339971 date "1979-08-01" @default.
- W2024339971 modified "2023-09-27" @default.
- W2024339971 title "Semileptonic decays of heavy quarks in quantum chromodynamics" @default.
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- W2024339971 doi "https://doi.org/10.1016/0550-3213(79)90046-4" @default.
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