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题名: Masses and decay widths of heavy hybrid mesons
作者: Zhu, SL
刊名: PHYSICAL REVIEW D
出版日期: 1999
卷号: 60, 期号:1, 页码:-
关键词: QCD SUM-RULES ;  EFFECTIVE FIELD-THEORY ;  FLUX-TUBE MODEL ;  EXOTIC MESONS ;  LEADING ORDER ;  FORM-FACTORS ;  BAG MODEL ;  QUARK ;  COUPLINGS ;  HADRONS
学科分类: Physics
通讯作者: Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: 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].
收录类别: SCI
WOS记录号: WOS:000081330000019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13126
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Zhu, SL. Masses and decay widths of heavy hybrid mesons[J]. PHYSICAL REVIEW D,1999,60(1):-.
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