Could $Z_b(10610)$ be a $B^{\ast }\bar{B}$ molecular state?

Jian-Rong Zhang, Ming Zhong, Ming-Qiu Huang

Assuming the newly observed structure $Z_b(10610)$ as a bottomonium-like molecular state $B^{\ast }\bar{B}$, we calculate its mass in the framework of QCD sum rules. The numerical re…