IHEP OpenIR  > 理论物理室
The Z(b)(10610) and Zb(10650) as axial-vector tetraquark states in the QCD sum rules
Wang, ZG; 黄涛(理); Huang, T
2014
发表期刊NUCLEAR PHYSICS A
卷号930页码:63-85
摘要In this article, we study the axial-vector mesons Z(b)(10 610) and Z(b)(10 650) with the C gamma(mu)-C gamma(5) type and C gamma(mu)-C gamma(nu) type interpolating currents, respectively, by carrying out the operator product expansion to the vacuum condensates up to dimension 10. In calculations, we explore the energy scale dependence of the QCD spectral densities of the hidden bottom tetraquark states in detail for the first time, and suggest a formula mu =root M-X/Y/Z(2)-(2M(b))(2) with the effective mass M-b = 5.13 GeV to determine the energy scales. The numerical results favor assigning the Z(b)(10610) and 4(10 650) as the C gamma(mu)-C gamma(5) type and C gamma(mu)-C gamma(nu) type hidden bottom tetraquark states, respectively. We obtain the mass of the J(PC) = 1(++) hidden bottom tetraquark state as 'a byproduct, which can be compared to the experimental data in the futures. Furthermore, we study the strong decays Z(b)(+/-) (10 610) -> Upsilon pi(+/-), eta(b)rho(+/-) with the three-point QCD sum rules, the decay widths also support assigning the Z(b)(10 610) as the C gamma(mu)-C gamma(5) type hidden bottom tetraquark state. (C) 2014 Elsevier B.V. All rights reserved.
关键词Tetraquark state QCD sum rules
学科领域Physics
DOI10.1016/j.nuclphysa.2014.08.084
收录类别SCI
WOS记录号WOS:000343340100005
引用统计
被引频次:40[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/311005/225229
专题理论物理室
推荐引用方式
GB/T 7714
Wang, ZG,Huang T. The Z(b)(10610) and Zb(10650) as axial-vector tetraquark states in the QCD sum rules[J]. NUCLEAR PHYSICS A,2014,930:63-85.
APA Wang, ZG,&黄涛.(2014).The Z(b)(10610) and Zb(10650) as axial-vector tetraquark states in the QCD sum rules.NUCLEAR PHYSICS A,930,63-85.
MLA Wang, ZG,et al."The Z(b)(10610) and Zb(10650) as axial-vector tetraquark states in the QCD sum rules".NUCLEAR PHYSICS A 930(2014):63-85.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
11252.pdf(692KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, ZG]的文章
[黄涛(理); Huang, T]的文章
百度学术
百度学术中相似的文章
[Wang, ZG]的文章
[黄涛(理); Huang, T]的文章
必应学术
必应学术中相似的文章
[Wang, ZG]的文章
[黄涛(理); Huang, T]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。