Is X(3872) really a molecular state?
Liu YR(刘言锐); Liu, YR; Liu, X; Deng, WZ; Zhu, SL
刊名EUROPEAN PHYSICAL JOURNAL C
2008
卷号56期号:1页码:#REF!
学科分类Physics
DOI10.1140/epjc/s10052-008-0640-4
通讯作者Liu, YR (reprint author), Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China.
文章类型Article
英文摘要After taking into account both the pion and sigma meson exchange potential, we have performed a dynamical calculation of the D-0(D) over bar*(0) system. The s meson exchange potential is repulsive from heavy quark symmetry and numerically important for a loosely bound system. Our analysis disfavors the interpretation of X(3872) as a loosely bound molecular state if we use the experimental D*D pi coupling constant g = 0.59 and a reasonable cutoff around 1 GeV, which is the typical hadronic scale. Bound state solutions with negative eigenvalues for the D-0(D) over bar* system exist only with either a very large coupling constant (twice the experimental value) or a large cutoff (Lambda similar to 6GeV or beta similar to 6GeV(2)). In contrast, there probably exists a loosely bound S-wave B (B) over bar* molecular state. Once produced, such a molecular state would be rather stable, since its dominant decay mode is the radiative decay through B* -> B gamma. Experimental search of these states will be very interesting.
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000257652300007
引用统计
被引频次:104[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225859
专题中国科学院高能物理研究所_理论物理室_期刊论文
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GB/T 7714
Liu YR,Liu, YR,Liu, X,et al. Is X(3872) really a molecular state?[J]. EUROPEAN PHYSICAL JOURNAL C,2008,56(1):#REF!.
APA 刘言锐,Liu, YR,Liu, X,Deng, WZ,&Zhu, SL.(2008).Is X(3872) really a molecular state?.EUROPEAN PHYSICAL JOURNAL C,56(1),#REF!.
MLA 刘言锐,et al."Is X(3872) really a molecular state?".EUROPEAN PHYSICAL JOURNAL C 56.1(2008):#REF!.
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