The Genuine Resonance of Full-Charm Tetraquarks

In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers JPC=0++,1+−,2++ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method. In this calculation, two structures, meson-meson and diquark–antidiquark, as well as t...

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Bibliographic Details
Published in:Universe (Basel) 2021-05, Vol.7 (5), p.155
Main Author: Chen, Xiaoyun
Format: Article
Language:English
Subjects:
Collaboration
Color
Energy
full-charm
quark model
Resonance
resonances
Spectrum analysis
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Summary:In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers JPC=0++,1+−,2++ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method. In this calculation, two structures, meson-meson and diquark–antidiquark, as well as their mixing with all possible color-spin configurations, are considered. The results show that no bound states can be formed. However, resonances are possible because of the color structure. The genuine resonances are identified by the stabilization method (real scaling method). Several resonances for the full-charm system are proposed, and some of them are reasonable candidates for the full-charm states recently reported by LHCb.
ISSN:2218-1997
2218-1997
DOI:10.3390/universe7050155