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Triply-heavy tetraquarks in an extended relativized quark model
- Source :
- Phys. Rev. D 104, 054026 (2021)
- Publication Year :
- 2021
-
Abstract
- In this paper, we adopt an extended relativized quark model to investigate the triply-heavy tetrquarks systematically. The mass spectra are obtained by solving the four-body relativized Hamiltonian including the Coulomb potential, confining potential, spin-spin interactions, and relativistic corrections. We find that all of the triply-heavy tetraquarks lie above the corresponding meson-meson thresholds, and thus no stable one exists. In particular, besides the spin-spin interactions, the Coulomb and confining potentials also contribute to the mass splittings in the $cb\bar c \bar q$ and $cb\bar b \bar q$ systems. Moreover, the whole mass spectra for triply heavy tetraquarks show quite similar patterns, which preserve the light flavor SU(3) symmetry and heavy quark symmetry well. Through the fall-apart mechanism, the triply-heavy tetraquarks may easily decay into the heavy quarkonium plus heavy-light mesons, which are good candidates for investigation in future experiments.<br />Comment: 15 pages, 4 figures. Minor modifications, accepted version
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 104, 054026 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2107.13930
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.104.054026