Heavy-Meson Decay Constants: QCD Sum-Rule Glance at Isospin Breaking
1 Institute for High Energy Physics, Austrian Academy of Sciences, Nikolsdorfergasse 18, A-1050 Vienna, Austria
2 D. V. Skobeltsyn Institute of Nuclear Physics, M. V. Lomonosov Moscow State University, 119991, Moscow, Russia
3 Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
4 INFN, Sezione di Roma Tre, Via della Vasca Navale 84, I-00146 Roma, Italy
Published online: 25 November 2016
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.
© The Authors, published by EDP Sciences, 2016
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