Strong Isospin Breaking in Heavy-Meson Decay Constants: Employing Borelized QCD Sum Rules in Local-Duality Limit

Autor: Lucha Wolfgang, Melikhov Dmitri, Simula Silvano
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: EPJ Web of Conferences, Vol 192, p 00041 (2018)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/201819200041
Popis: Applying the QCD sum-rule machinery in the so-called local-duality shape to heavy-light mesons reveals that, as a consequence of the non-zero mass gap between up and down quarks, the leptonic decay constants of the neutral and charged versions of the D, D*, B and B* mesons differ by approximately 1 MeV.
Databáze: Directory of Open Access Journals
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