Is X(3872) a molecule?

被引：166
|
作者：
Thomas, C. E. [1 ]
Close, F. E. [1 ]
机构：
[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England
来源：
PHYSICAL REVIEW D | 2008年 / 78卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.78.034007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that the literature on pion exchange between charm and bottom mesons is inconsistent. We derive the formalism explicitly, expose differences between papers in the literature, and clarify the implications. We show that the X(3872) can be a bound state but that results are very sensitive to a poorly constrained parameter. We confirm that bound states in the B (B) over bar sector are possible. The circumstances whereby exotic combinations can bind with cc or bb quantum numbers are explored.
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页数：12
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