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题名: Fits of weak annihilation and hard spectator scattering corrections in B-u,B-d -> VV decays
作者: Chang, Q ;  Li, XN ;  Sun, JF ;  Yang, YL
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 2016
卷号: 43, 期号:10, 页码:105004
关键词: B meson ;  QCD factorization ;  weak annihilation
学科分类: Physics
DOI: http://dx.doi.org/10.1088/0954-3899/43/10/105004
通讯作者: Chang, Q (reprint author), Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Henan, Peoples R China. ;  Chang, Q (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100864, Peoples R China.
文章类型: Article
英文摘要: In this paper, the contributions of weak annihilation and hard spectator scattering in B -> rho K*, K* (K) over bar*, phi K*, rho rho and phi phi decays are investigated within the framework of quantum chromodynamics factorization. Using the experimental data available, we perform chi(2) analyses of end-point parameters in four cases based on the topology-dependent and polarization-dependent parameterization schemes. The fitted results indicate that: (i) in the topology-dependent scheme, the relation (rho(i)(A), phi(i)(A)) not equal (rho(f)(A), phi(f)(A)) obtained through B -> PP and PV decays is favored by the penguin-dominated B -> VV decays at 95% CL; (ii) the large hard spectator scattering corrections and/or the simplification (rho(H), phi(H)) = (rho(i)(A), phi(i)(A)) are challenged by B((B) over bar (0) -> rho(0)rho(0)), even though they are allowed by B -> PP and PV decays and helpful for resolving the 'pi pi puzzle'; (iii) in the polarization-dependent scheme, the relation (rho(L)(A), phi(L)(A)) not equal (rho(T)(A), phi(T)(A)) is always required. Moreover, we have updated the theoretical results for B -> VV decays with the best-fit values of end-point parameters. A few observables, such as the ones of pure annihilation B-d -> phi phi decay, are also identified for probing the annihilation corrections.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: QCD FACTORIZATION ;  CP VIOLATION ;  B-S ;  POLARIZATION ;  IMPACT
收录类别: SCI
项目资助者: National Natural Science Foundation of China [11475055, 11275057, U1232101, U1332103] ;  Foundation for the Author of National Excellent Doctoral Dissertation of P R China [201317] ;  Program for Science and Technology Innovation Talents in Universities of Henan Province [14HASTIT036] ;  Foundation for University Key Teacher of Henan Province [2013GGJS-58]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21519
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Chang, Q,Li, XN,Sun, JF,et al. Fits of weak annihilation and hard spectator scattering corrections in B-u,B-d -> VV decays[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2016,43(10):105004.
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