Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules

Wang, Zhi-Gang (Aff1, 0000 0004 0645 4572, grid.261049.8, Department of Physics, North China Electric Power University, 071003, Baoding, People’s Republic of China)

11 June 2019

Abstract: In this article, we extend our previous work to study the mass spectrum of the ground state hidden-bottom tetraquark states with the QCD sum rules in a systematic way. The predicted hidden-bottom tetraquark masses can be confronted to the experimental data in the future to diagnose the nature of the Zb \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$Z_b$$\end{document} states. In calculations, we observe that the scalar diquark states, the axialvector diquark states and the axialvector components of the tensor diquark state are all good diquarks in building the lowest tetraquark states.

Published in: EPJC 79 (2019) 489 DOI: 10.1140/epjc/s10052-019-7019-6
License: CC-BY-3.0

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