论文标题
$λ_C^+ \ toϕp $和$λ_c^+ \ toωp$衰减中的均等违规研究
Study of parity violation in $Λ_c^+\toϕp$ and $Λ_c^+ \to ωp$ decays
论文作者
论文摘要
在实验中尚未看到Baryonic衰减中CP违规的证据。随着大型数据事件在$ E^+E^ - $ collider或大型强子对撞机上积累，Charmed Baryon衰减将提供有前途的实验室来测试CP对称性。在这项工作中，我们制定了$λ_c^+\ toϕp $和$λ_c^+\toΩp$衰变，以测量其在BESIII或LHCB实验的弱衰减中其不对称参数的测量。在$ e^+e^ - \toλ_c^+barλ_c^ - $和$λ_b^0 \toλ^+_cπ^ - $的两个过程中分析了极化传输，并提供了这些过程的关节角度分布的公式。未来实验估计了不对称参数对上述两个衰减过程的测量的敏感性。
Evidence for CP violation in baryonic decays has not been seen in experiments. With large data events accumulated at $e^+e^-$ collider or Large Hadron Collider, the charmed baryon decays would provide a promising laboratory to test the CP symmetry. In this work, we formulate the $Λ_c^+\toϕp$ and $ Λ_c^+\toωp$ decays for the measurements of their asymmetry parameters in weak decays at the BESIII or the LHCb experiments. The polarization transfer is analyzed in the two processes of $e^+ e^- \toΛ_c^+\barΛ_c^-$ and $Λ_b^0\to Λ^+_cπ^-$, and the formulas of the joint angular distribution for these processes are provided. The sensitivity of the measurement of asymmetry parameters for the above two decay processes is estimated for the future experiments.
