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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
Source PublicationPHYSICAL REVIEW D
KeywordQcd Sum-rules Effective Field-theory Flux-tube Model Exotic Mesons Leading Order Form-factors Bag Model Quark Couplings Hadrons
AbstractWe 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].
1999
ISSN0556-2821
Volume60Issue:1Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13126
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
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):-.
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