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Guo, FK ; Hanhart, C; Kalashnikova, YS; Matuschek, P; Mizuk, RV; Nefediev, AV; Wang, Q; Wynen, JL; Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Guo, FK (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.; Guo, FK (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.
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| Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrization for line shapes | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Abstract | We propose a practical parametrization for the line shapes of near-threshold states compatible with all requirements of unitarity and analyticity. The coupled-channel system underlying the proposed parametrization includes bare poles and an arbitrary number of elastic and inelastic channels treated fully nonperturbatively. The resulting formulas are general enough to be used for a simultaneous analysis of the data in all available production and decay channels of the (system of) state(s) under consideration for a quite wide class of reactions. As an example, we fit the experimental data currently available for several decay channels for the charged Z(b)((r)) states in the spectrum of bottomonia and find a good overall description of the data. We find the present data to be consistent with the Z(b)(10610) as a virtual state and with the Z(b)(10650) as a resonance, both residing very close to the B (B) over bar* and B*(B) over bar* threshold, respectively. |
| 2016 | |
| Volume | 93Issue:7Pages:74031 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.074031 |
| Indexed By | SCI |
| Funding Organization | DFG ; DFG ; DFG ; DFG ; NSFC [11261130311] ; NSFC [11261130311] ; NSFC [11261130311] ; NSFC [11261130311] ; Russian Science Foundation [15-12-30014] ; Russian Science Foundation [15-12-30014] ; Russian Science Foundation [15-12-30014] ; Russian Science Foundation [15-12-30014] ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21682 |
| Collection | SCI期刊论文 |
| Corresponding Author | Guo, FK (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Guo, FK (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.; Guo, FK (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany. |
| Recommended Citation GB/T 7714 | Guo, FK,Hanhart, C,Kalashnikova, YS,et al. Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrization for line shapes[J]. PHYSICAL REVIEW D,2016,93(7):74031. |
| APA | Guo, FK.,Hanhart, C.,Kalashnikova, YS.,Matuschek, P.,Mizuk, RV.,...&Guo, FK .(2016).Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrization for line shapes.PHYSICAL REVIEW D,93(7),74031. |
| MLA | Guo, FK,et al."Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrization for line shapes".PHYSICAL REVIEW D 93.7(2016):74031. |
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| Interplay of quark a（894KB） | 开放获取 | -- | Application Full Text | |||
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