期刊
MODERN PHYSICS LETTERS A
卷 32, 期 29, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732317501541
关键词
Quark model; diquark; exotic states
资金
- [RSF 16-12-10267]
The diquark-diquark-antiquark model describes pentaquark states both in terms of quarks and hadrons. The latest LHCb data for pentaquarks with open charm emphasize the importance of hadron components in the structure of pentaquarks. We discuss pentaquark states with hidden charm ((c) over bar cuud) and those with open charm P((u) over bar ussc) which were discovered recently in LHCb data (J/Psi p and Xi(+)(c) K- spectra correspondingly). Considering the observed states as members of the lowest (s-wave) multiplet, we discuss the mass splitting of states and the dumping of their widths.
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