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Energy Scan of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n=1, 2) Cross Sections and Evidence for gamma(11020) Decays into Charged Bottomoniumlike States
Belle Collaboration
2016
发表期刊PHYSICAL REVIEW LETTERS
卷号117期号:14
文章类型Article
摘要Using data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider, we measure the energy dependence of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n = 1, 2) cross sections from thresholds up to 11.02 GeV. We find clear gamma(10860) and gamma(11020) peaks with little or no continuum contribution. We study the resonant substructure of the gamma(11020) -> h(b)(nP)pi(+)pi(_) transitions and find evidence that they proceed entirely via the intermediate isovector states Z(b)(10610) and Z(b)(10650). The relative fraction of these states is loosely constrained by the current data: The hypothesis that only Z(b)(10610) is produced is excluded at the level of 3.3 standard deviations, while the hypothesis that only Z(b)(10650) is produced is not excluded at a significant level.
DOI10.1103/PhysRevLett.117.142001
关键词[WOS]ANNIHILATION
语种英语
WOS记录号WOS:000384082500008
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260889
专题实验物理中心
作者单位中国科学院高能物理研究所
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Belle Collaboration. Energy Scan of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n=1, 2) Cross Sections and Evidence for gamma(11020) Decays into Charged Bottomoniumlike States[J]. PHYSICAL REVIEW LETTERS,2016,117(14).
APA Belle Collaboration.(2016).Energy Scan of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n=1, 2) Cross Sections and Evidence for gamma(11020) Decays into Charged Bottomoniumlike States.PHYSICAL REVIEW LETTERS,117(14).
MLA Belle Collaboration."Energy Scan of the e(+)e(-) -> h(b)(nP)pi(+)pi(-) (n=1, 2) Cross Sections and Evidence for gamma(11020) Decays into Charged Bottomoniumlike States".PHYSICAL REVIEW LETTERS 117.14(2016).
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