Decays $B_s\to J/\psi +\eta$ and $B_s\to J/\psi +{\eta }^{\prime }$ in the framework of covariant quark model

Stanislav Dubnička, Anna Z. Dubničková, Mikhail A. Ivanov +1

The covariant quark model represents an appropriate theoretical framework to describe the recent results on $B_s\to J/\psi +\eta$ and $B_s\to J/\psi +{\eta }^{\prime }$ decays from the B…