𝛬𝑏 → 𝛬𝑐 + 𝑎1 decay in the heavy quark effective theory

Pramana

R Mohanta¹  A K Giri¹ 

[1] Physics Department, Panjab University, Chandigarh 160 014, India$$

关键词: Nonfactorizable contributions;    HQET;    Isgur–Wise function.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Using the heavy quark approximation, we have studied the nonleptonic decay mode 𝛬𝑏 → 𝛬𝑐 + 𝑎1. We have included nonfactorizable contributions as well as factorizable ones in our analysis. The estimated branching ratio for this process is (1.4± 0.1)% and the asymmetry parameter 𝛼 found to be -0.8.

【 授权许可】

Unknown