论文标题
三体baryonic $ \ bar {b}^{0} \rightarrowλ^+_ c \ bar {p}π^0 $ decay
Three-Body Baryonic $ \bar{B}^{0}\rightarrowΛ^+_c \bar{p} π^0$ Decay
论文作者
论文摘要
我们研究了基于分解方法的三体重腐烂$ \ bar {b}^{0} \rightArrowλ^+_ c \ bar {p}π^0 $。这种衰减模式的最重要的Feynman图是可分解的和不可分化的贡献，因此前者在衰减振幅中起关键作用，后者会影响振幅系数$ a_2 $。 We calculate the decay branching ratio for some values of $a_2$ in the range of $0.16-0.40$ and we find that the value of $a_2=0.17$ leads us to the result of $(1.50\pm0.21)\times10^{-4}$ which evidently agrees with the experimental result $(1.55\pm0.17\pm0.08)\times 10^{ - 4} $由Babar报告
We study the three-body baryonic decay $ \bar{B}^{0}\rightarrowΛ^+_c \bar{p} π^0$ based on the factorization approach. The most important Feynman diagrams for this decay mode are factorizable and non-factorizable contributions, so that the former plays the key role in the decay amplitude and the latter affects the amplitude coefficient $a_2$. We calculate the decay branching ratio for some values of $a_2$ in the range of $0.16-0.40$ and we find that the value of $a_2=0.17$ leads us to the result of $(1.50\pm0.21)\times10^{-4}$ which evidently agrees with the experimental result $(1.55\pm0.17\pm0.08)\times 10^{-4}$ reported by BABAR
