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Interplay of quark and meson degrees of freedom in near-threshold states: A practical parametrization for line shapes
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.
2016
发表期刊PHYSICAL REVIEW D
卷号93期号:7页码:74031
文章类型Article
摘要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.
学科领域Astronomy & Astrophysics ; Physics
资助者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 ; 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
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.074031
关键词[WOS]Z(B) STATES ; X(3872) ; PARTICLES
收录类别SCI
语种英语
资助者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 ; 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
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21682
专题理论物理所SCI论文
通讯作者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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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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