B→K0*(1430) η(′) decays in the pQCD approach

LIU Xin; ZHANG Zhi-Qing; XIAO Zhen-Jun

doi:10.1088/1674-1137/34/2/001

Chinese Physics C> 2010, Vol. 34> Issue(2) : 157-164 DOI: 10.1088/1674-1137/34/2/001

B→K₀^*(1430) η^(′) decays in the pQCD approach

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Abstract：
Based on the assumption of two-quark structure of the scalar meson K₀^*(1430), we calculate the CP-averaged branching ratios for B→K₀^*(1430) η^(′) decays in the framework of the perturbative QCD (pQCD) approach here. We perform the evaluations in two scenarios for the scalar meson spectrum. We find that: (a) the pQCD predictions for Br(B→K₀^*(1430) η^(′)) which are about 10^－5−10^－6, basically agree with the data within large theoretical uncertainty; (b) the agreement between the pQCD predictions and the data in Scenario I is better than that in Scenario II, which can be tested by the forthcoming LHC experiments; (c) the annihilation contributions play an important role for these considered decays.

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LIU Xin, ZHANG Zhi-Qing and XIAO Zhen-Jun. B→K₀^*(1430) η^(′) decays in the pQCD approach[J]. Chinese Physics C, 2010, 34(2): 157-164. doi: 10.1088/1674-1137/34/2/001

LIU Xin, ZHANG Zhi-Qing and XIAO Zhen-Jun. B→K₀^*(1430) η^(′) decays in the pQCD approach[J]. Chinese Physics C, 2010, 34(2): 157-164. doi: 10.1088/1674-1137/34/2/001 shu

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Received: 2009-04-14
Revised: 2009-04-22

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沈阳化工大学材料科学与工程学院沈阳 110142

B→K₀^*(1430) η^(′) decays in the pQCD approach

Corresponding author: LIU Xin,

Received Date: 2009-04-14
Accepted Date: 2009-04-22
Available Online: 2010-02-05

Abstract:

Based on the assumption of two-quark structure of the scalar meson K₀^*(1430), we calculate the CP-averaged branching ratios for B→K₀^*(1430) η^(′) decays in the framework of the perturbative QCD (pQCD) approach here. We perform the evaluations in two scenarios for the scalar meson spectrum. We find that: (a) the pQCD predictions for Br(B→K₀^*(1430) η^(′)) which are about 10^－5−10^－6, basically agree with the data within large theoretical uncertainty; (b) the agreement between the pQCD predictions and the data in Scenario I is better than that in Scenario II, which can be tested by the forthcoming LHC experiments; (c) the annihilation contributions play an important role for these considered decays.