https://doi.org/10.1140/epja/s10050-026-01870-z
Regular Article - Theoretical Physics
Hidden-charm and -bottom tetraquark states with 
via QCD sum rules
1
Department of Physics, Liaoning Normal University, 116029, Dalian, China
2
Center for Theoretical and Experimental High Energy Physics, Liaoning Normal University, 116029, Dalian, China
a
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Received:
30
January
2026
Accepted:
22
April
2026
Published online:
19
May
2026
Abstract
We investigate the 
hidden-charm and hidden-bottom tetraquark states within the framework of QCD sum rules. The mass spectra are computed by including condensates up to dimension eight in the operator product expansion. Our results indicate the possible existence of four hidden-charm tetraquark states, with predicted masses of 
GeV, 
GeV, 
GeV, and 
GeV, while their hidden-bottom counterparts are estimated to have masses of 
GeV, 
GeV, 
GeV, and 
GeV, respectively. We also analyze the possible decay modes of these tetraquark states, which may be accessible in future experiments at BESIII, Belle II, and LHCb. These findings provide valuable guidance for the experimental search for exotic tetraquark states in both the charm and bottom sectors.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
Communicated by Heng-Tong Ding.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
