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Z(b)/Z(b)' -> Upsilon pi and h(b)pi decays in intermediate meson loops model
Li, G; Shao, FL; Zhao, CW; Zhao, Q;赵强
2013
发表期刊PHYSICAL REVIEW D
卷号87期号:3页码:34020
摘要With the recent measurement of Z(b)(10610) and Z(b)(10650) -> B (B) over bar* + c.c. and B*(B) over bar*, we investigate the transitions from the Z(b)(10610) and Z(b)(10650) to bottomonium states with emission of a pion via intermediate BB* meson loops. The experimental data can be reproduced in this approach with a commonly accepted range of values for the form factor cutoff parameter alpha. The Upsilon(3S)pi decay channels appear to experience obvious threshold effects which can be understood by the property of the loop integrals. By investigating the alpha-dependence of partial decay widths and ratios between different decay channels, we show that the intermediate BB* meson loops are crucial for driving the transitions of Z(b)/Z(b)' -> Upsilon(nS)pi with n = 1, 2, 3, and h(b)(mP)pi with m = 1 and 2. DOI: 10.1103/PhysRevD.87.034020
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.87.034020
收录类别SCI
WOS记录号WOS:000314877900002
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被引频次:27[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/311005/224533
专题理论物理室
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Li, G,Shao, FL,Zhao, CW,et al. Z(b)/Z(b)' -> Upsilon pi and h(b)pi decays in intermediate meson loops model[J]. PHYSICAL REVIEW D,2013,87(3):34020.
APA Li, G,Shao, FL,Zhao, CW,&Zhao, Q;赵强.(2013).Z(b)/Z(b)' -> Upsilon pi and h(b)pi decays in intermediate meson loops model.PHYSICAL REVIEW D,87(3),34020.
MLA Li, G,et al."Z(b)/Z(b)' -> Upsilon pi and h(b)pi decays in intermediate meson loops model".PHYSICAL REVIEW D 87.3(2013):34020.
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