| Autor: |
Navarra, F.S., Nielsen, M., Dias, J.M., Zanetti, C.M. |
| Zdroj: |
Nuclear and Particle Physics Proceedings; January-February 2015, Vol. 258 Issue: 1 p144-147, 4p |
| Abstrakt: |
We study the decay properties of the recently observed charmonium-like structure Zc(3900). Using QCD sum rules we evaluate the three-point function and extract the coupling constants of the Zc+J/ψπ+, Zc+ηcρ+and Zc+D+D¯⁎0vertices and the corresponding decay widths in these channels. The results obtained are in good agreement with the experimental data and support to the tetraquark interpretation of this state. |
| Databáze: |
Supplemental Index |
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