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Chen, YH; Daub, JT; Guo, FK; Kubis, B; Meissner, UG; Zou, BS; Chen, YH (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany.; Chen, YH (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.
Effect of Z(b) states gamma(3S) -> gamma(1S) pi pi decays
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractWithin the framework of dispersion theory, we analyze the dipion transitions between the lightest gamma(nS) -> gamma(nS)pi pi states, with m < n <= 3. In particular, we consider the possible effects of two intermediate bottomoniumlike exotic states Z(b) (10610) and Z(b)(10650). The pi pi rescattering effects are taken into account in a model-independent way using dispersion theory. We confirm that matching the dispersive representation to the leading chiral amplitude alone cannot reproduce the peculiar two-peak pi pi mass spectrum of the gamma(3S) -> gamma(1S)pi pi. The existence of the bottomoniumlike Zb states can naturally explain this anomaly. We also point out the necessity of a proper extraction of the coupling strengths for the Z(b) states gamma(nS)pi, which is only possible if a Flatte- like parametrization is used in the data analysis for the Z(b) states.
2016
Volume93Issue:3Pages:34030
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.034030
Indexed BySCI
Funding OrganizationNSFC [11261130311, 11165005] ; NSFC [11261130311, 11165005] ; NSFC [11261130311, 11165005] ; NSFC [11261130311, 11165005] ; DFG through funds provided ; DFG through funds provided ; DFG through funds provided ; DFG through funds provided ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076] ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076] ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076] ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21760
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorChen, YH (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany.; Chen, YH (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.
Recommended Citation
GB/T 7714
Chen, YH,Daub, JT,Guo, FK,et al. Effect of Z(b) states gamma(3S) -> gamma(1S) pi pi decays[J]. PHYSICAL REVIEW D,2016,93(3):34030.
APA Chen, YH.,Daub, JT.,Guo, FK.,Kubis, B.,Meissner, UG.,...&Chen, YH .(2016).Effect of Z(b) states gamma(3S) -> gamma(1S) pi pi decays.PHYSICAL REVIEW D,93(3),34030.
MLA Chen, YH,et al."Effect of Z(b) states gamma(3S) -> gamma(1S) pi pi decays".PHYSICAL REVIEW D 93.3(2016):34030.
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