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arXiv · 0802.1806

Relativistic description of heavy tetraquarks

D. Ebert·R. N. Faustov·V. O. Galkin
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Abstract

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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D. Ebert, R. N. Faustov, V. O. Galkin. 2008-02-13. Relativistic description of heavy tetraquarks. https://doi.org/10.1134/s1063778809010220

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