期刊
PHYSICAL REVIEW D
卷 98, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.094015
关键词
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资金
- DFG [TRR110, CRC 110]
- NSFC [CRC 110, 11621131001]
- CAS-TWAS President's Fellowship
We calculate the spectrum of q (q) over barc (c) over bar and s (s) over barc (c) over bar tetraquarks, where q, s, and c stand for light (u, d), strange, and charm quarks, respectively, in a relativized diquark model, characterized by one-gluon-exchange plus confining potential. In the diquark model, a q (q) over barc (c) over bar (s (s) over barc (c) over bar) tetraquark configuration is made up of a heavy-light diquark, qc (sc), and anti-diquark, (q) over bar(c) over bar ((s) over bar(c) over bar. According to our results, 13 charmonium-like observed states can be accommodated in the tetraquark picture, both in the hidden-charm (q (q) over barc (c) over bar) and hidden-charm hidden-strange (s (s) over barc (c) over bar) sectors.
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