Scalar hidden-charm tetraquark states with QCD sum rules
| Autor: | Di, Zun-Yan, Wang, Zhi-Gang, Zhang, Jun-Xia, Yu, Guo-Liang |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Commun.Theor.Phys.69 (2018)191-202 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0253-6102/69/2/191 |
| Popis: | 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. Comment: 17 pages, 16 figures |
| Databáze: | arXiv |
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