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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
2006
发表期刊PHYSICAL REVIEW D
卷号74期号:11页码: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
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.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.74.114010
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000243170500031
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被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240943
专题理论物理室
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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