Possible explanation why tau(B(+/-)) similar to tau(B(0)) but tau(D(+/-)) similar to 2 tau(D(0))
Dong, HS; Guo XH(郭新恒); Guo, XH; Li, XQ; Zhang, R
刊名PHYSICAL REVIEW D
1998
卷号57期号:11页码:6807-6813
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.57.6807
通讯作者Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia ; Univ Adelaide, Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China
文章类型Article
英文摘要Data show that tau(B)+/- similar to tau(B)0, but tau(D)+/- similar to 2 tau(D)0. The naive interpretation which attributes tau(D)+/- similar to 2 tau(D)0 to a destructive interference between two quark diagrams for DI decays definitely fails in the B case. We investigate the suggestion of Close and Lipkin that the phases for producing radially excited states psi(2s) in the decay products of B mesons can possess an opposite sign to the integrals for psi(1s) decay products. Their contributions can partially compensate each other to result in tau(B)+/- similar to tau(B)0. Since D mesons are much lighter than B mesons, such possibilities do not exist in D decays.
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:000073999200026
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240095
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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Dong, HS,Guo XH,Guo, XH,et al. Possible explanation why tau(B(+/-)) similar to tau(B(0)) but tau(D(+/-)) similar to 2 tau(D(0))[J]. PHYSICAL REVIEW D,1998,57(11):6807-6813.
APA Dong, HS,郭新恒,Guo, XH,Li, XQ,&Zhang, R.(1998).Possible explanation why tau(B(+/-)) similar to tau(B(0)) but tau(D(+/-)) similar to 2 tau(D(0)).PHYSICAL REVIEW D,57(11),6807-6813.
MLA Dong, HS,et al."Possible explanation why tau(B(+/-)) similar to tau(B(0)) but tau(D(+/-)) similar to 2 tau(D(0))".PHYSICAL REVIEW D 57.11(1998):6807-6813.
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