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Possible assignments of the X(3872), Z(c)(3900), and Z(b)(10610) as axial-vector molecular states
Wang, ZG; 黄涛(理); Huang, T
2014
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号74期号:5页码:2891
摘要In this article, we construct both the color singlet-singlet type and the octet-octet type currents to interpolate X(3872), Z(c)(3900), and Z(b)(10610), and we calculate the vacuum condensates up to dimension-10 in the operator product expansion. Then we study the axial-vector hidden charm and hidden bottom molecular states with the QCD sum rules, explore the energy-scale dependence of the QCD sum rules for the heavy molecular states in details, and we use the formula root M-X/Y/Z(2) - (2M(Q))(2) with the effective masses M-Q to determine the energy scales. The numerical results support assigning X(3872), Z(c)(3900), and Z(b)(10610) as the color singlet-singlet type molecular states with J(PC) = 1(++), 1(+-), 1(+-), respectively, more theoretical and experimental work is still needed to distinguish the molecule and tetraquark assignments; while there are no candidates for the color octet-octet type molecular states.
学科领域Physics
DOI10.1140/epjc/s10052-014-2891-6
收录类别SCI
WOS记录号WOS:000340091800001
引用统计
被引频次:37[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/311005/225012
专题理论物理室
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GB/T 7714
Wang, ZG,Huang T,Huang, T. Possible assignments of the X(3872), Z(c)(3900), and Z(b)(10610) as axial-vector molecular states[J]. EUROPEAN PHYSICAL JOURNAL C,2014,74(5):2891.
APA Wang, ZG,黄涛,&Huang, T.(2014).Possible assignments of the X(3872), Z(c)(3900), and Z(b)(10610) as axial-vector molecular states.EUROPEAN PHYSICAL JOURNAL C,74(5),2891.
MLA Wang, ZG,et al."Possible assignments of the X(3872), Z(c)(3900), and Z(b)(10610) as axial-vector molecular states".EUROPEAN PHYSICAL JOURNAL C 74.5(2014):2891.
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