论文标题
分析角分布不对称和相关的$ c \！p $不对称的三体衰变
Analysis of angular distribution asymmetries and the associated $C\!P$ asymmetries in three-body decays of bottom baryons
论文作者
论文摘要
我们介绍了一组可观察到的可观察分布，代表角度分布不对称，可以将其视为角度分布的前后不对称的概括，并可以用作有效的工具，以搜索$ c \！p $违规的底部底部和car骨和诱人的bary子。我们建议搜索这种$ c \！p $不对称（1），以$λ^0 $，$σ^\ pm $或$λ_c^+$所涉及的$λ_b\ toλ_b\toλ_b\toλ_b\λ^0 d $和$λ_B\ to / v $λ_b\toλ_b\toλ^0ep（770）^0 $; （2）在三体腐烂的底部重子中，涉及相反的中间共振。典型的示例包括$ξ_b^ - \ to p k^ - k^ - $，$λ_b^0 \ to pk_sπ^ - $和$λ_b^0 \ topπ^0π^ - $，其中最后一个衰减通道被用作玩具模型来说明基础想法。
We introduce a set of observables representing angular distribution asymmetries, which can be viewed as a generalization of the forward-backward asymmetry of angular distributions, and can be used as an effective tool to search for $C\!P$ violation in three-body decays of bottom and charmed baryons. We propose to search for such $C\!P$ asymmetries (1) in decays with $Λ^0$, $Σ^\pm$, or $Λ_c^+$ involved, such as $Λ_b\to Λ^0 D$ and $Λ_b\toΛ^0ρ(770)^0$; and (2) in three-body decays of bottom baryons with opposite parity intermediate resonances involved. Typical examples include $Ξ_b^-\to p K^- K^-$, $Λ_b^0\to p K_Sπ^-$ and $Λ_b^0\to p π^0π^-$, in which the last decay channel is used as a toy model to illustrate of the basic idea.
