Study of B -> J/Psi eta((')) decays and determination of eta-eta(') mixing angle
Li, JW; Du DS(杜东生); Du, DS
刊名PHYSICAL REVIEW D
2008
卷号78期号:7页码:74030
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.78.074030
通讯作者[Li, Jing-Wu] Xu Zhou Normal Univ, Dept Phys, XuZhou 221116, Peoples R China ; [Du, Dong-Sheng] Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要We study B -> J/Psi eta((')) decays and suggest two methods to determine the eta-eta(') mixing angle. We calculate not only the factorizable contribution in the QCD factorization scheme but also the nonfactorizable hard spectator corrections in the pQCD approach. We get the branching ratio of B -> J/Psi eta, which is consistent with recent experimental data, and predict the branching ratio of B -> J/Psi eta(') to be 7.59x10(-6). Two methods for determining the eta-eta(') mixing angle are suggested in this paper. For the first method, we get the eta-eta(') mixing angle to be about -13.1 degrees, which is consistent with others in the literature. The second method depends on fewer parameters and can thus be used to determine the eta-eta(') mixing angle with better accuracy but needs, as an input, the branching ratio for B -> J/Psi eta('), which should be measured in the near future.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000260574800066
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240787
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Li, JW,Du DS,Du, DS. Study of B -> J/Psi eta((')) decays and determination of eta-eta(') mixing angle[J]. PHYSICAL REVIEW D,2008,78(7):74030.
APA Li, JW,杜东生,&Du, DS.(2008).Study of B -> J/Psi eta((')) decays and determination of eta-eta(') mixing angle.PHYSICAL REVIEW D,78(7),74030.
MLA Li, JW,et al."Study of B -> J/Psi eta((')) decays and determination of eta-eta(') mixing angle".PHYSICAL REVIEW D 78.7(2008):74030.
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