Beauty Vector Meson Decay Constants from QCD Sum Rules

Abstract

We present the outcomes of a very recent investigation of the decay constants of nonstrange and strange heavy-light beauty vector mesons, with special emphasis on the ratio of any such decay constant to the decay constant of the corresponding pseudoscalar meson, by means of Borel-transformed QCD sum rules. Our results suggest that both these ratios are below unity.

6 pages, 3 figures, talk presented at "Quark Confinement and the Hadron Spectrum XI" (8 - 12 September 2014, St. Petersburg, Russia)

References in corpus (10)

• Big-Bang Nucleosynthesis
• The effective continuum threshold in dispersive sum rules
• OPE, charm-quark mass, and decay constants of D and D_s mesons from QCD sum rules
• Decay constants of heavy pseudoscalar mesons from QCD sum rules
• Decay constants of the charmed vector mesons $D^{\ast }$ and $D_s^{\ast }$ from QCD sum rules
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• Decay Constants of Beauty Mesons from QCD Sum Rules

Cited by in corpus (1)

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