论文标题
搜索$ξ_c^{0/+} $ - $之一
A novel method for searching the $Ξ_c^{0/+}$-$Ξ_c^{\prime 0/+}$ mixing effect in the angular distribution analysis of a four-body $Ξ_c^{0/+}$ decay
论文作者
论文摘要
在这项工作中，我们提出了一种新的方法，用于搜索$ξ^{0+} _ c $ - $ - $ξ_c^{0+\ prime} $混合效应在$ $ eell^+n peay use $ pers compect $ nem permect use $ perscome $ perscome pembose $ pers compect $ n of the $ pempect use $ pembles的$ nem pembort and $ perss compect use的角度分布分析时共鸣。预测具有这种角度分布，衰减分支部分和前后不对称。我们指出的是，向前的不对称，作为$ξ^{（\ prime）} $的不变大体平方和$ξ^{0+} _ c $ - $ c $ - $ - $ξ_c^{0+\ prime} $混合$θ_c$，可以用来区分两个cosigity $ prime $ priend $ priend $ priend $ priend $ priend＆buity yever＆expy＆exenants $ prime＆expe and（c）混合角。
In this work, we raised a novel method for searching the $Ξ^{0+}_c$-$Ξ_c^{0+\prime}$ mixing effect in an angular distribution analysis of the $Ξ_c\toΞ^{(\prime)}(Λπ)\ell^+ν$ decay, where the mixing effect can be observed by the appearance of the $Ξ^{\prime}$ resonant. Armed with this angular distribution, the decay branching fraction and the forward-backward asymmetry are predicted. We pointed out that the forward-backward asymmetry, as a function of the invariant mass square of $Ξ^{(\prime)}$ and the $Ξ^{0+}_c$-$Ξ_c^{0+\prime}$ mixing angle $θ_c$, can be used to distinguish the two resonants $Ξ^{(\prime)}$ and even provide a possibility to determine the exact mixing angle.
