Heavy-Meson Decay Constants: QCD Sum-Rule Glance at Isospin Breaking

Abstract

QCD sum rules for decay constants of heavy mesons with $u$ or $d$ quark yield for $B$ mesons much less isospin breaking than lattice QCD but good agreement for $D$ mesons.

5 pages, 2 figures, contributed to "QCD@Work 2016 - International Workshop on Quantum Chromodynamics: Theory and Experiment" (27 - 30 June 2016, Martina Franca, Italy)

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Cited by in corpus (1)

• Heavy-Meson Decay Constants: Isospin Breaking from QCD Sum Rules