Light-cone distribution amplitudes of heavy mesons with QED effects

نویسندگان

چکیده

A bstract We discuss the QED-generalized leading-twist light-cone distribution amplitudes of heavy mesons, that appear in QCD QED factorization theorems for exclusive two-body B decays. In presence electrically charged particles, these functions should be more appropriately regarded as soft heavy-meson decays into two back-to-back particles. this paper, we derive one-loop anomalous dimension and study their behaviour under renormalization-scale evolution, obtaining an exact solution Laplace space. addition, provide numerical solutions analytical to all orders strong first order electromagnetic coupling. For inverse (and inverse-logarithmic) moments, obtain all-order both couplings. further estimates corrections moments.

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ژورنال

عنوان ژورنال: Journal of High Energy Physics

سال: 2022

ISSN: ['1127-2236', '1126-6708', '1029-8479']

DOI: https://doi.org/10.1007/jhep08(2022)020