Light-cone distribution amplitudes of heavy mesons with QED effects
Martin Beneke,
Philipp Böer,
Jan-Niklas Toelstede
et al.
Abstract:We discuss the QED-generalized leading-twist light-cone distribution amplitudes of heavy mesons, that appear in QCD×QED factorization theorems for exclusive twobody B decays. In the presence of electrically charged particles, these functions should be more appropriately regarded as soft functions for heavy-meson decays into two back-to-back particles. In this paper, we derive the one-loop anomalous dimension of these soft functions and study their behaviour under renormalization-scale evolution, obtaining an e… Show more
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