Prepared for submission to JHEP Light-Cone Distribution Amplitudes for Heavy-Quark Hadrons

Abstract: We construct parametrizations of light-cone distribution amplitudes (LCDAs) for B-mesons and Λb-baryons that obey various theoretical constraints, and which are sim-ple to use in factorization theorems relevant for phenomenological applications in heavy-flavour physics. In particular, we find the eigenfunctions of the Lange-Neubert renor-malization kernel, which allow for a systematic implementation of renormalization-group evolution effects for both B-meson and Λb-baryon decays. We also present a new strategy to construct LCDA models from momentum-space projectors, which can be used to imple-ment Wandzura-Wilczek–like relations, and which allow for a comparison with theoretical approaches that go beyond the collinear limit for the light-quark momenta in energetic heavy-hadron decays