Model Dependence of the BSW Approach

Luo Chuanwang; Huang Tao; Guo Xingheng; Li Jinping; Lu Goungru

Chinese Physics C> 1994, Vol. 18> Issue(S2) : 151-166

Model Dependence of the BSW Approach

1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China;
2. Institute of Theoretical Physics, Chinese Academy of Sciencesv Beijing, China;
3. Physics Department, Henan Normal University, Xinxiang, Henan, China

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Abstract：
Hadronic model wavefunctions are applied to calculate hadronic matrix elements of decays of D,B mesons in the Bauer-Stech-Wirbel (BSW) approach. We have analyzed several different models of valence Fock state wavefunctions, studied their properties and calculated branching ratios of weak decays of D,B mesons. The results show that predictions of the different wavefunction models can fit most of the present data within the errors by choosing reasonable a₁ and a₂. Therefore, for studying the model dependence and the reliability of the BSW approach it will be helpful to further investigate the factorization of weak processes and the hadronic wavefunctions theoretically and to further perform more accurate experiment measurements.
- hadronic wavefunction ,
- weak decay ,
- heavy flavor meson
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Luo Chuanwang, Huang Tao, Guo Xingheng, Li Jinping and Lu Goungru. Model Dependence of the BSW Approach[J]. Chinese Physics C, 1994, 18(S2): 151-166.

Luo Chuanwang, Huang Tao, Guo Xingheng, Li Jinping and Lu Goungru. Model Dependence of the BSW Approach[J]. Chinese Physics C, 1994, 18(S2): 151-166. shu

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Received: 1993-03-31

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沈阳化工大学材料科学与工程学院沈阳 110142

Model Dependence of the BSW Approach

1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China;
2. Institute of Theoretical Physics, Chinese Academy of Sciencesv Beijing, China;
3. Physics Department, Henan Normal University, Xinxiang, Henan, China

Received Date: 1993-03-31

Abstract: Hadronic model wavefunctions are applied to calculate hadronic matrix elements of decays of D,B mesons in the Bauer-Stech-Wirbel (BSW) approach. We have analyzed several different models of valence Fock state wavefunctions, studied their properties and calculated branching ratios of weak decays of D,B mesons. The results show that predictions of the different wavefunction models can fit most of the present data within the errors by choosing reasonable a₁ and a₂. Therefore, for studying the model dependence and the reliability of the BSW approach it will be helpful to further investigate the factorization of weak processes and the hadronic wavefunctions theoretically and to further perform more accurate experiment measurements.