Study of scalar mesons f(0)(980) and f(0)(1500) from B -> f(0)(980)K and B -> f(0)(1500)K decays
Wang W(王伟); Shen YL(沈月龙); Li Y(李营); Lv CD(吕才典); Wang, W; Shen, YL; Li, Y; Lu, CD
刊名PHYSICAL REVIEW D
2006
卷号74期号:11页码:114010
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.74.114010
通讯作者CCAST, World Lab, Beijing 100080, Peoples R China ; CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要Within perturbative QCD approach based on k(T) factorization, we analyze the scalar mesons f(0)(980) and f(0)(1500) productions in B decays. By identifying f(0)(980) as the composition of (s) over bars and (n) over barn=((u) over baru+(u) over bard)/root 2, we calculate the exclusive decays B -> f(0)(980)K. We find that the nonfactorization f(0)-emission diagrams can give larger contribution to the branching ratio, than the previous PQCD calculation. Our new results can explain the current experimental data well. Under the assumption of quarkonium dominance, we study the branching ratio of decays B -> f(0)(1500)K. The results show that in the two-quark picture of f(0) meson the contribution from (s) over bars component is at the similar size as that from the (n) over barn component. Comparing the data, our results show the preference of f(0)(1500) as a member of the ground state of scalar (q) over barq nonet. Similar results can also apply to f(0)(1370) and f(0)(1710), if these mesons are dominated by the quarkonium content. With more experimental data in the future, these studies will help us understand the intrinsic characters of these scalar mesons.
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:000243170500031
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240943
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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Wang W,Shen YL,Li Y,et al. Study of scalar mesons f(0)(980) and f(0)(1500) from B -> f(0)(980)K and B -> f(0)(1500)K decays[J]. PHYSICAL REVIEW D,2006,74(11):114010.
APA 王伟.,沈月龙.,李营.,吕才典.,Wang, W.,...&Lu, CD.(2006).Study of scalar mesons f(0)(980) and f(0)(1500) from B -> f(0)(980)K and B -> f(0)(1500)K decays.PHYSICAL REVIEW D,74(11),114010.
MLA 王伟,et al."Study of scalar mesons f(0)(980) and f(0)(1500) from B -> f(0)(980)K and B -> f(0)(1500)K decays".PHYSICAL REVIEW D 74.11(2006):114010.
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