期刊
PHYSICS OF ATOMIC NUCLEI
卷 72, 期 1, 页码 184-188出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063778809010220
关键词
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资金
- Deutsche Forschungsgemeinschaft [Eb 139/2-4]
- Russian Foundation for Basic Research [05-02-16243, 08-02-00582]
- Russian Science Support Foundation
The masses of the ground-state and excited heavy tetraquarks with hidden charm and bottom are calculated within the relativistic diquark-antidiquark picture. The dynamics of the light quark in a heavy-light diquark is treated completely relativistically. The diquark structure is taken into account by calculating the diquark-gluon form factor. New experimental data on charmonium-like states above the open charm threshold are discussed. The obtained results indicate that X(3872), Y(4260), Y(4360), Z(4433), and Y(4660) can be tetraquark states with hidden charm.
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