arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2601.08752hep-ph
收藏

$Ω_c$在极化电子-正子对撞机中向$Ω^-π^+$衰变的现象学研究

Phenomenological Study of $Ω_c\rightarrow Ω^-π^+$ at Polarized Electron-Positron Collider

Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University(核物理与离子束应用教育部重点实验室和现代物理研究所,复旦大学);College of Physics, Jilin University(吉林大学物理学院);Institute of High Energy Physics(高能物理研究所)

Yunlu Wang, Yunlong Xiao, Pengcheng Hong

AI总结:

本文研究$Ω_c$在极化电子-正子对撞机中向$Ω^-π^+$衰变的P和CP对称性,通过分析双体衰变过程中的不对称参数,探讨其衰变特性及后续超子衰变特征。

摘要:

对称定律的探索是现代物理研究中的前沿方向。本文通过分析$Ω_c$在极化电子-正子对撞机中两体衰变过程中的不对称参数,探讨了P和CP对称性在重子系统中的特性。通过考虑电子和正子束的极化效应并采用旋量形式主义,我们系统地分析了$Ω_c$的衰变特性及其后续超子衰变特征。已建立了这些衰变过程的角分布综合公式。研究评估了在不同实验条件下,$Ω_c\rightarrow Ω^-π^+$衰变模式中不对称参数的检测灵敏度,包括不同数据样本大小和束流极化配置。这些结果为STCF后续实验任务提供了理论基础,对重子区对称性研究具有重要意义。

英文摘要:

The exploration of symmetry laws stands as a cutting-edge direction in modern physics research. This work delves into the examination of P and CP symmetry properties within the charm quark system by analyzing asymmetry parameters in the two-body decay process of $Ω_c$. By accounting for the polarization effects of electron and positron beams and employing the helicity formalism, we systematically analyze the decay characteristics of $Ω_c$ and its subsequent hyperon decays through specific asymmetry parameters. A comprehensive formulation of the angular distribution for these decay processes has been developed. The research assesses the detection sensitivity of asymmetry parameters in the $Ω_c\rightarrow Ω^-π^+$ decay mode across different experimental conditions, including varying data sample sizes and beam polarization configurations. These results contribute to enriching a theoretical foundation for forthcoming experimental endeavors at the STCF, offering significant implications for symmetry studies in the charm sector.

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。

↑