Zb(10610)± and Zb(10650)± as the B*(B)over-bar and B*(B)over-bar* molecular states

被引：168
|
作者：
Sun, Zhi-Feng [1 ,2 ,4 ]
He, Jun [1 ,2 ,3 ]
Liu, Xiang [1 ,2 ,4 ]
Luo, Zhi-Gang [5 ,6 ]
Zhu, Shi-Lin [5 ,6 ]
机构：
[1] Lanzhou Univ, Res Ctr Hadron, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, CSR Phys, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Nucl Theory Grp, Lanzhou 730000, Peoples R China
[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
[5] Peking Univ, Dept Phys, Beijing 100871, Peoples R China
[6] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
来源：
PHYSICAL REVIEW D | 2011年 / 84卷 / 05期
基金：
中国国家自然科学基金;
关键词：
CHIRAL PERTURBATION-THEORY; FINITE-ELEMENT SOLUTION; HEAVY; CHARMONIUM; PROGRAM; DEUSONS; DECAYS; FESSDE;
D O I：
10.1103/PhysRevD.84.054002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the framework of the one-boson-exchange model, we have studied the interaction of the B*(B) over bar and B*(B) over bar* systems. After considering the S-wave and D-wave mixing, we notice that both Z(b)(10610)(+/-) and Z(b)(10650)(+/-) can be interpreted as the B*(B$) over bar and B*(B) over bar* molecular states quite naturally. The long-range one-pion-exchange force alone is strong enough to form these loosely bound molecular states, which ensures the numerical results are quite model independent and robust.
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页数：5
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