Flavor symmetry analysis of charmless B -> V P decays

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	Flavor symmetry analysis of charmless B -> V P decays
	Chiang, Cheng-Wei; Zhou, Yu-Feng; Chiang, CW , Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2009
期号	3 页码:-
关键词	Meson Decays Cp-violation Final-states Asymmetries Penguins Search Matrix Vector Omega Eta
ISSN号	1126-6708
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000265600800055
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5380]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Chiang, CW , Natl Cent Univ, Dept Phys, Chungli 320, Taiwan
推荐引用方式 GB/T 7714	Chiang, Cheng-Wei,Zhou, Yu-Feng,Chiang, CW , Natl Cent Univ, Dept Phys, Chungli 320, Taiwan. Flavor symmetry analysis of charmless B -> V P decays[J]. JOURNAL OF HIGH ENERGY PHYSICS,2009(3):-.
APA	Chiang, Cheng-Wei,Zhou, Yu-Feng,&Chiang, CW , Natl Cent Univ, Dept Phys, Chungli 320, Taiwan.(2009).Flavor symmetry analysis of charmless B -> V P decays.JOURNAL OF HIGH ENERGY PHYSICS(3),-.
MLA	Chiang, Cheng-Wei,et al."Flavor symmetry analysis of charmless B -> V P decays".JOURNAL OF HIGH ENERGY PHYSICS .3(2009):-.