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Masses and decay widths of heavy hybrid mesons
Zhu, SL; Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1999
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号60期号:1页码:-
摘要We first derive the mass sum rules for the heavy hybrid mesons to obtain the binding energy and decay constants in the leading order of heavy quark effective theory. The pionic couplings between the lightest 1(-+) hybrid (g) and the lowest three heavy meson doublers are calculated with the light cone QCD sum rules. With SUf(3) flavor symmetry we calculate the widths for all the possible two-body decay processes with a Goldstone boson in the final state. The total width of the 1(-+) hybrid is estimated to be around 300 MeV. We find that the dominant decay mode of the 1(-+) heavy hybrid is 1(-+) --> pi+1(+) where the 1(+) heavy meson belongs to the (1(+),2(+)) heavy meson doublet. Its branching ratio is about 80% so this mode can be used for the experimental search of the lowest heavy hybrid meson. [S0556-2821(99)01213-8].
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Qcd Sum-rules Effective Field-theory Flux-tube Model Exotic Mesons Leading Order Form-factors Bag Model Quark Couplings Hadrons
学科领域Physics
收录类别SCI
WOS记录号WOS:000081330000019
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13126
专题理论物理所SCI论文
通讯作者Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Zhu, SL,Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Masses and decay widths of heavy hybrid mesons[J]. PHYSICAL REVIEW D,1999,60(1):-.
APA Zhu, SL,&Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1999).Masses and decay widths of heavy hybrid mesons.PHYSICAL REVIEW D,60(1),-.
MLA Zhu, SL,et al."Masses and decay widths of heavy hybrid mesons".PHYSICAL REVIEW D 60.1(1999):-.
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