Masses and decay widths of heavy hybrid mesons

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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.
刊名	PHYSICAL REVIEW D
	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
ISSN号	0556-2821
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].
学科主题	Physics
WOS记录号	WOS:000081330000019
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13126]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	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):-.