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

Wolfgang Lucha, Dmitri Melikhov, Silvano Simula

Publications: Contribution to journalMeeting abstract/Conference paperPeer Reviewed

Abstract

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 $D,$ $D^\ast,$ $B$ and $B^\ast$ mesons differ by approximately 1 MeV.
Original languageEnglish
Article number00041
Number of pages7
JournalEPJ Web of Conferences
Volume192
DOIs
Publication statusPublished - 14 Nov 2018
EventInternational Workshop on Quantum Chromodynamics - Theory and Experiment (QCD@Work 2018) - , Italy
Duration: 25 Jun 201828 Jun 2018

Austrian Fields of Science 2012

  • 103034 Particle physics

Keywords

  • hep-ph
  • hep-lat
  • nucl-th
  • EXTRACTION
  • CURRENT CORRELATORS

Cite this