Regular Article – Theoretical Physics
Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
Mesoamerican Centre for Theoretical Physics, Universidad Autónoma de Chiapas, Carretera Zapata Km. 4, Real del Bosque (Terán), 29040, Tuxtla Gutiérrez, Chiapas, Mexico
2 Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Genova, Via Dodecaneso 33, 16146, Genoa, Italy
3 Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Edificio C-3, Ciudad Universitaria, 58040, Morelia, Michoacán, Mexico
4 Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, 06520-8120, New Haven, CT, USA
5 Department of Physics, University of Jyväskylä, P.O. Box 35, 40014, Jyväskylä, Finland
6 School of Physics, Nanjing University, 210093, Nanjing, Jiangsu, China
7 Institute for Nonperturbative Physics, Nanjing University, 210093, Nanjing, Jiangsu, China
Accepted: 19 October 2020
Published online: 30 October 2020
Using a relativized diquark model Hamiltonian, we calculate the masses of ground-state tetraquarks in the following systems: , (), , , , and . 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.
© The Author(s) 2020
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