Using Λ_c+→pK-π~+ as a spin polarimeter
Using Λ_c+→pK-π~+ as a spin polarimeter
复制标题
使用 Î_c âpK-Ï~ 作为自旋旋光计
DOI：
10.1088/1674-1137/ac5e93
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Ping Ronggang
中科院分区：
文献类型：
--
作者：
Wei Daihui;Yang Yongxu;Ping Ronggang
极化转移测量在探索粲化重子衰变新的物理过程中起着重要的作用。本文建议将Λ_c~+→pK~-π~+衰变的测量作为自旋极化计。利用欧拉角对衰减进行了一般描述，并推导出了极化参数。利用唯象振幅模型，找到了它与宇称破坏的关系。通过蒙特-卡罗模拟，结果表明，利用一组具有选定非对称性参数的蒙特-卡罗事例，可以很好地确定粲化重子的极化。这些不对称参数的实验测量的建议。
Polarization transfer measurement plays an important role in the search for new physics processes in charmed baryon decays. The measurement of the Λ_c~+→pK~-π~+ decay is suggested as a spin polarimeter. A general description of the decay is developed using Euler angles, and the polarization parameters are derived. Its relationship with parity violation is found using the phenomenological amplitude model. A Monte-Carlo simulation is performed, and the results show that charmed baryon polarization is well determined using a set of Monte-Carlo events with selected asymmetry parameters. The experimental measurement of these asymmetry parameters is suggested.