期刊
SYMMETRY-BASEL
卷 12, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/sym12111869
关键词
double-heavy tetraquark 1; full-heavy tetraquark 2; hidden-charm pentaquark 3; hidden-bottom pentaquark 4; doubly charmed pentaquark 5; Gaussian expansion method 6; constituent quark model
资金
- National Natural Science Foundation of China [11535005, 11775118]
- Ministerio Espanol de Ciencia e Innovacion [PID2019-107844GB-C22]
- Junta de Andalucia
- Operativo FEDER Andalucia [2014-2020 UHU-1264517]
With the development of high energy physics experiments, a large amount of exotic states in the hadronic sector have been observed. In order to shed some light on the nature of the tetraquark and pentaquark candidates, a constituent quark model, along with the Gaussian expansion method, has been employed systematically in real- and complex-range investigations. We review herein the double- and fully-heavy tetraquarks, but also the hidden-charm, hidden-bottom and doubly charmed pentaquarks. Several exotic hadrons observed experimentally were well reproduced within our approach; moreover, their possible compositeness and other properties, such as their decay widths and general patterns in the spectrum, are analyzed. Besides, we report also some theoretical predictions of tetra- and penta-quark states which have not seen by experiment yet.
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