Investigation of the D s * Ds η (′) and B s * Bs η (′) vertices via QCD sum rules
Department of Physics, Kocaeli University, 41380, Izmit, Turkey
2 Physics Department, Faculty of Arts and Sciences, Doğuş University, Acıbadem-Kadıköy, 34722, Istanbul, Turkey
* e-mail: email@example.com
Accepted: 24 September 2013
Published online: 14 October 2013
The strong-coupling constants among mesons are very important quantities as they can provide useful information on the nature of strong interaction among hadrons as well as the QCD vacuum. In this article, we investigate the strong vertices of the D s * D s η (′) and B s * B s η (′) in the framework of the QCD sum rule approach choosing the η or D s (B s ) meson as an off-shell state. We obtain the results , , and for the strong-coupling constants under consideration, which can be checked in future experiments.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2013