Ball, Patricia and Braun, Vladimir M. and Gardi, Einan
Distribution amplitudes of the Λb baryon in QCD.
Physics Letters B 665 (4), pp. 197-204.
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The QCD description of exclusive decays of the Λb baryon involves hadronic matrix elements of non-local light ray operators, the light-cone distribution amplitudes. We introduce the complete set of three-quark distribution amplitudes and calculate the renormalization scale dependence for the leading twist. At leading order in the strong coupling the evolution is driven by pairwise two-quark ...
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