期刊
PHYSICAL REVIEW D
卷 90, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.90.076008
关键词
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资金
- Major State Basic Research Development Program in China [2014CB845405]
- National Natural Science Foundation of China [11275235, 11035006]
- Chinese Academy of Sciences (the Knowledge Innovation Project) [KJCX2-EW-N01]
In this work the B (B) over bar*/D (D) over bar* system is studied in the Bethe-Salpeter approach with quasipotential approximation. In our calculation both direct and cross diagrams are included in the one-boson-exchange potential. The numerical results indicate the existence of an isoscalar bound state D (D) over bar* with J(PC) = 1(++) which may be related to the X(3872). In the isovector sector, no bound state is produced from the interactions of D (D) over bar* and B (B) over bar*, which suggests the molecular state explanations for Z(b)(10610) and Z(c)(3900) are excluded.
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