Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
Bedolla, M. A., Ferretti, J., Roberts, C. D., & Santopinto, E. (2020). Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective. European Physical Journal C, 80(5), Article 1004. https://doi.org/10.1140/epjc/s10052-020-08579-3
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European Physical Journal CDate
2020Copyright
© The Author(s) 2020
Using a relativized diquark model Hamiltonian, we calculate the masses of JPC=0++ ground-state tetraquarks in the following systems: bsb¯s¯, bbn¯n¯ (n=u,d), bbs¯s¯, ccc¯c¯, bbb¯b¯, bcb¯c¯ and bbc¯c¯. We also compute extensive spectra for the fully-heavy quark flavour combinations. Finally, as a test of the diquark model approach, we compute the masses of fully-heavy baryons in the diquark model. Our results may be compared soon to the forthcoming experimental data for fully-heavy three-quark systems.
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We are grateful for constructive comments from L. Maiani, P. Bicudo, Z.-F. Cui, G. Eichmann, A. Lovato and J. Segovia. Work supported by: CONACyT, México; INFN Sezione di Genova; Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán 58040, México; Jiangsu Province Hundred Talents Plan for Professionals; the Academy of Finland, Project No. 320062; and US Department of Energy, Office of Nuclear Physics, contract No. DE-FG-02-91ER-40608. ...License
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