In this article, we take the scalar diquark and antidiquark operators as the basic constituents, construct the $C\gamma_5\otimes\stackrel{ \leftrightarrow}{ \partial}_\mu\otimes \gamma_5C$ type tetraquark current to study the $Y(10750)$ with the QCD sum rules. The predicted mass $M_{ Y}=10.75\pm0.10\,\rm{ GeV}$ and width $\Gamma_Y= 33.60^{ +16.64}_{ -9.45}\,{ \rm{ MeV}}$ support assigning the $Y(10750)$ to be the diquark-antidiquark type vector hidden-bottom tetraquark state, which has a relative P-wave between the diquark and antidiquark constituents.
Categories: hep-ph