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Local-duality QCD sum rules for strong isospin breaking in the decay constants of heavy–light mesons

We discuss the leptonic decay constants of heavy–light mesons by means of Borel QCD sum rules in the local-duality (LD) limit of infinitely large Borel mass parameter. In this limit, for an appropriate choice of the invariant structures in the QCD correlation functions, all vacuum-condensate contrib...

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Detalles Bibliográficos
Autores principales: Lucha, Wolfgang, Melikhov, Dmitri, Simula, Silvano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5902617/
https://www.ncbi.nlm.nih.gov/pubmed/29706794
http://dx.doi.org/10.1140/epjc/s10052-018-5637-z