In this study, the coupling constant of Ds∗D∗K∗ and Ds1D1K∗ vertices were determined within the three-point Quantum chromodynamics sum rules method with and without consideration of the SUf(3) symmetry. The coupling constants were calculated for off-shell charm and K∗ cases. Considering the non-perturbative effect of the correlation function, as the most important contribution, the quark-quark, quark-gluon, and gluon-gluon condensate corrections were estimated and were compared with other predictive methods.
@article{arxiv.1809.00242,
title = {Analysis of $D^*_sD^*K^*$ and $ D_{s1} D_1 K^*$ vertices in three-point sum rules},
author = {M. Janbazi and R. Khosravi and E. Noori},
journal= {arXiv preprint arXiv:1809.00242},
year = {2018}
}