期刊
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
卷 2016, 期 6, 页码 -出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ptep/ptw045
关键词
B69; C21
资金
- Japan Society for the Promotion of Science (JSPS) [X00: 21105001, A01: 21105002, E01: 21105006]
- [26400273]
- [25247036]
- [15K17641]
- Grants-in-Aid for Scientific Research [26400273, 25247036] Funding Source: KAKEN
both in experiments and in theories. In this review, we provide topical discussions by selecting X, Y, Z particles, to which Belle has made important contributions. These are X(3872), Y (4260), Z(c)(4430)(+), Z(c)(3900)(+), Z(b)(10610)(+), and Z(b)(10650)(+). Based on the current experimental observations, we discuss these states with emphasis on the hadronic molecule whose dynamics is governed by chiral symmetry and heavy-quark symmetry of QCD. We also mention briefly various interpretations and some theoretical predictions for the as yet undiscovered exotic hadrons.
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