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题名: Flavor symmetry analysis of charmless B -> V P decays
作者: Chiang, Cheng-Wei ;  Zhou, Yu-Feng
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2009
期号: 3, 页码:-
关键词: MESON DECAYS ;  CP-VIOLATION ;  FINAL-STATES ;  ASYMMETRIES ;  PENGUINS ;  SEARCH ;  MATRIX ;  VECTOR ;  OMEGA ;  ETA
学科分类: Physics
通讯作者: Chiang, CW , Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
部门归属: [Chiang, CW] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan; [Chiang, CW] Natl Cent Univ, Ctr Math & Theoret Phys, Chungli 320, Taiwan; [Chiang, CW] Acad Sinica, Inst Phys, Taipei 115, Taiwan; [Zhou, YF] Korea Inst Adv Study, Seoul 130722, South Korea; [Zhou, YF] Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Based upon flavor SU(3) symmetry, we perform global fits to charmless B decays into one pseudoscalar meson and one vector meson in the final state. We consider different symmetry breaking schemes and find that the one implied by naive scaling, where strangeness-conserving and strangeness-changing amplitudes are related by the ratio of appropriate decay constants, is slightly favored over the exact symmetry case. The ((rho) over bar, (eta) over bar) vertex of the unitarity triangle (UT) constrained by our fits is consistent with other methods within errors. We have found large color-suppressed, electroweak penguin and singlet penguin amplitudes when the spectator quark ends up in the final-state vector meson. Nontrivial relative strong phases are also required to explain the data. The best-fit parameters are used to compute branching ratio and CP asymmetry observables in all of the decay modes, particularly those in the B(s) decays to be measured at the Tevatron and LHC experiments.
资助者: National Center for Theoretical Sciences in Hsinchu; National Science Council of Taiwan, R. O. C.[NSC 96-2112-M-008-001]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000265600800055
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5380
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chiang, Cheng-Wei,Zhou, Yu-Feng. Flavor symmetry analysis of charmless B -> V P decays[J]. JOURNAL OF HIGH ENERGY PHYSICS,2009(3):-.
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