Light-cone distribution amplitudes of heavy mesons with QED effects

Martin Beneke, Philipp Böer, Jan Niklas Toelstede, K. Keri Vos

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

13 Zitate (Scopus)

Abstract

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 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 exact solution in Laplace space. In addition, we provide numerical solutions for the soft functions and analytical solutions to all orders in the strong and to first order in the electromagnetic coupling. For the inverse (and inverse-logarithmic) moments, we obtain an all-order solution in both couplings. We further provide numerical estimates for QED corrections to the inverse moments.

OriginalspracheEnglisch
Aufsatznummer20
FachzeitschriftJournal of High Energy Physics
Jahrgang2022
Ausgabenummer8
DOIs
PublikationsstatusVeröffentlicht - Aug. 2022

Fingerprint

Untersuchen Sie die Forschungsthemen von „Light-cone distribution amplitudes of heavy mesons with QED effects“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren