The strong Ds∗Dsη(′) and Bs∗Bsη(′) vertices are studied and the relevant couplings are calculated in the context of the light-cone QCD sum rule method with twist-4 accuracy by including the next-to-leading order corrections. In the analysis, both the quark and gluon components of the η and η′ mesons and the axial anomaly corrected higher twist distributions are included.
@article{arxiv.1509.08620,
title = {Strong $D^{*}_sD_{s}\eta^{(\prime)}$ and $B^{*}_sB_{s}\eta^{(\prime)}$ vertices from QCD light-cone sum rules},
author = {S. S. Agaev and K. Azizi and H. Sundu},
journal= {arXiv preprint arXiv:1509.08620},
year = {2016}
}