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

Compared with lattice QCD, isospin breaking of heavy-meson decay constants from QCD sum rules agrees for D mesons but disagrees (by a factor of four) for B mesons.

Bibliographic Details
Main Authors: Lucha Wolfgang, Melikhov Dmitri, Simula Silvano
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201713706017