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arXiv · 1905.06610

Vector hidden-bottom tetraquark candidate: $Y(10750)$

Zhi-Gang Wang
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Abstract

In this article, we take the scalar diquark and antidiquark operators as the basic constituents, construct the $Cγ_5\otimes\stackrel{\leftrightarrow}{\partial}_μ\otimes γ_5C$ 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 $Γ_Y= 33.60^{+16.64}_{-9.45}\,{\rm{MeV}}$ 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.

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Zhi-Gang Wang. 2019-09-25. Vector hidden-bottom tetraquark candidate: $Y(10750)$. https://doi.org/10.1088/1674-1137%2F43%2F12%2F123102

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