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Branching ratios and CP asymmetries of Bu/d/s -> K-0* (1430) (K)over-bar(0)* (1430) decays in the pQCD approach
Liu, X; Xiao, ZJ; Zou ZT(邹芝田)
2013
发表期刊JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷号40期号:2页码:25002
摘要Based on the assumption of a two-quark structure of the scalar K-0* (1430), the CP-averaged branching ratios (BRs) and CP-violating asymmetries of nonleptonic B-u/d/s -> K-0* (1430) (K) over bar (0)* (1430) decays are studied in two scenarios, namely scenario 1 and scenario 2, for the light-cone distribution amplitudes of the K-0* (1430) meson in the standard model, by employing the perturbative QCD (pQCD) approach. Our predictions are the following: (1) the CP-averaged BRs for B-u/d/s -> K-0* (1430) (K) over bar (0)* (1430) decays in both scenarios vary in the range of 10(-6) similar to 10(-4) in the standard model; (2) the magnitudes of A(CP)(dir) (B-u -> K-0* (1430) + (K) over bar (0)* (1430)(0)) and A(CP)(dir) (B-d/s -> K-0* (1430) + K-0* (1430)(-)) in scenario 1 are much larger than the corresponding magnitudes in scenario 2; (3) there are no direct CP violations in B-d/s -> K-0* (1430)(0)(K) over bar (0)* (1430)(0) decays in the standard model because of the involved pure penguin topology. An experimental confirmation of our pQCD predictions at the predicted level will favor the q (q) over bar structure of the scalar K-0* (1430) and help us to understand its physical properties and the QCD dynamics involved.
学科领域Physics
DOI10.1088/0954-3899/40/2/025002
收录类别SCI
WOS记录号WOS:000313963200002
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被引频次:4[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/311005/224510
专题理论物理室
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Liu, X,Xiao, ZJ,Zou ZT. Branching ratios and CP asymmetries of Bu/d/s -> K-0* (1430) (K)over-bar(0)* (1430) decays in the pQCD approach[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2013,40(2):25002.
APA Liu, X,Xiao, ZJ,&Zou ZT.(2013).Branching ratios and CP asymmetries of Bu/d/s -> K-0* (1430) (K)over-bar(0)* (1430) decays in the pQCD approach.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,40(2),25002.
MLA Liu, X,et al."Branching ratios and CP asymmetries of Bu/d/s -> K-0* (1430) (K)over-bar(0)* (1430) decays in the pQCD approach".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 40.2(2013):25002.
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