B→f0（980）（π,η^（＇）） decays in the PQCD approach

Based on the assumption of a two-quark structure of the scalar meson f0（980） ,we calculate the branching ratios and CP-violating asymmetries for the four B → f0（980） π and B → f0（980） η^（＇） decays by employing the perturbative QCD（pQCD） factorization approach. The leading order pQCD predictions for...

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Bibliographic Details
Published in	Chinese physics C no. 7; pp. 508 - 515
Main Author	张志清肖振军
Format	Journal Article
Language	English
Published	2009
Subjects	不对称分支比因式分解夸克结构微扰QCD 量子色动力学
Online Access	Get full text
ISSN	1674-1137 0254-3052

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Summary:	Based on the assumption of a two-quark structure of the scalar meson f0（980） ,we calculate the branching ratios and CP-violating asymmetries for the four B → f0（980） π and B → f0（980） η^（＇） decays by employing the perturbative QCD（pQCD） factorization approach. The leading order pQCD predictions for branching ratios are,Br（B^-→ f0（980） π^-）～ 2.5×10^-6,Br（Bˉ^0 → f0（980） π^0）～ 2.6×10^-7,Br（Bˉ^0 → f0（980） η）～ 2.5×10^-7 and Br（Bˉ^0 → f0（980） η ）～ 6.7×10^-7,which are consistent with both the QCD factorization predictions and the experimental upper limits.
Bibliography:	O572.243 O571.3 11-5641/O4 B meson decay, scalar meson, pQCD factorization approach
ISSN:	1674-1137 0254-3052