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• Measurement of the ratio B(t→Wb)/B(t→Wq) in pp collisions at √s=8 TeV ﻿

(2014)
The ratio of the top-quark branching fractions R=B(t→Wb)/B(t→Wq), where the denominator includes the sum over all down-type quarks (q=b,s,dq=b,s,d), is measured in the tt dilepton final state with proton–proton collision ...