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- W4310214204 endingPage "2504" @default.
- W4310214204 startingPage "2504" @default.
- W4310214204 abstract "Masses of the ground and excited (1P, 2S, 1D, 2P, 3S) states of the fully-heavy tetraquarks, composed of charm ($c$) and bottom ($b$) quarks and antiquarks, are calculated in the diquark-antidiquark picture within the relativistic quark model based on the quasipotential approach and quantum chromodynamics. The quasipotentials of the quark-quark and diquark-antidiquark interactions are constructed similarly to the previous consideration of mesons and baryons. Relativistic effects are consistently taken into account. A tetraquark is considered as a bound state of a diquark and an antidiquark. The finite size of the diquark is taken into account, using the form factors of the diquark-gluon interaction. It is shown that most of the investigated states of tetraquarks lie above the decay thresholds into a meson pair, as a result they can be observed only as broad resonances. The narrow state X(6900) recently discovered in the di-$J/psi$ production spectrum by the LHCb, CMS and ATLAS Collaborations corresponds to an excited state of the fully-charmed tetraquark. Other recently discovered exotic heavy resonances X(6200), X(6400), X(6600), X(7200), X(7300) can also be interpreted as the different excitations of the fully-charmed tetraquark." @default.
- W4310214204 created "2022-11-30" @default.
- W4310214204 creator A5014398719 @default.
- W4310214204 creator A5016008812 @default.
- W4310214204 creator A5025858901 @default.
- W4310214204 date "2022-11-26" @default.
- W4310214204 modified "2023-10-15" @default.
- W4310214204 title "Fully Heavy Tetraquark Spectroscopy in the Relativistic Quark Model" @default.
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