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arXiv · 1802.05354

Scalar hidden-charm tetraquark states with QCD sum rules

Zun-Yan Di·Zhi-Gang Wang·Jun-Xia Zhang·Guo-Liang Yu
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Abstract

In this article, we study the masses and pole residues of the pseudoscalar-diquark-pseudoscalar-antidiquark type and vector-diquark-vector-antidiquark type scalar hidden-charm $cu\bar{c}\bar{d}$ ($cu\bar{c}\bar{s}$) tetraquark states with QCD sum rules by taking into account the contributions of the vacuum condensates up to dimension-10 in the operator product expansion. The predicted masses can be confronted with the experimental data in the future. Possible decays of those tetraquark states are also discussed.

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Zun-Yan Di, Zhi-Gang Wang, Jun-Xia Zhang, Guo-Liang Yu. 2018-02-14. Scalar hidden-charm tetraquark states with QCD sum rules. https://doi.org/10.1088/0253-6102%2F69%2F2%2F191

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