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arXiv 1610.08296hep-ph
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$Λ_b \to π^- (D_s^-) Λ_c(2595),~π^- (D_s^-) Λ_c(2625)$衰变和$DN,~D^*N$分子组分

$Λ_b \to π^- (D_s^-) Λ_c(2595),~π^- (D_s^-) Λ_c(2625)$ decays and $DN,~D^*N$ molecular components

Wei-Hong Liang, Melahat Bayar, Eulogio Oset

摘要:

从$Λ_c(2595)$和$Λ_c(2625)$是由$DN,~D^*N$相互作用和耦合通道动态产生的共振的角度来看,我们已经评估了$Λ_b \to π^- Λ_c(2595)$和$Λ_b \to π^- Λ_c(2625)$的速率,直到一个全局未知因子,该因子允许我们计算速率比并与实验进行比较,其中发现了良好的一致性。同样,我们还可以预测尚未未知的,衰变的$Λ_b \to D_s^- Λ_c(2595)$和$Λ_b \to D_s^- Λ_c(2625)$,并作出估计,其个别分支分数。

英文摘要:

From the perspective that the $Λ_c(2595)$ and $Λ_c(2625)$ are dynamically generated resonances from the $DN,~D^*N$ interaction and coupled channels, we have evaluated the rates for $Λ_b \to π^- Λ_c(2595)$ and $Λ_b \to π^- Λ_c(2625)$ up to a global unknown factor that allows us to calculate the ratio of rates and compare with experiment, where good agreement is found. Similarly, we can also make predictions for the ratio of rates of the, yet unknown, decays of $Λ_b \to D_s^- Λ_c(2595)$ and $Λ_b \to D_s^- Λ_c(2625)$ and make estimates for their individual branching fractions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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