ITP OpenIR  > 理论物理所科研产出  > SCI论文
Chen, YH; Daub, JT; Guo, FK; Kubis, B; Meissner, UG; Zou, BS
Effect of Z(b) states gamma(3S) -> gamma(1S) pi pi decays
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordSIGMA-MESON PRODUCTION HADRONIC TRANSITIONS CHIRAL-SYMMETRY HEAVY QUARKONIA UPSILON CHARMONIUM RESONANCE EQUATIONS SPECTRA SYSTEMS
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] ; DFG through funds provided ; Thousand Talents Plan for Young Professionals ; Chinese Academy of Sciences President's International Fellowship Initiative [2015VMA076]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23118
Collection理论物理所科研产出_SCI论文
Affiliation1.[Chen, Yun-Hua
2.Daub, Johanna T.
3.Guo, Feng-Kun
4.Kubis, Bastian
5.Meissner, Ulf-G.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany
6.Meissner, Ulf-G.] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
7.[Guo, Feng-Kun
8.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
9.[Meissner, Ulf-G.] Forschungszentrum Julich, Inst Adv Simulat, D-52425 Julich, Germany
10.[Meissner, Ulf-G.] Forschungszentrum Julich, Inst Kernphys, Julich Ctr Hadron Phys, D-52425 Julich, 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,&Zou, BS.(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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