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.

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