English

Sensitivity of $CP$ Violation of $\Lambda$ decay in $J/\psi \to \Lambda \bar{\Lambda}$ at STCF

High Energy Physics - Phenomenology 2023-01-12 v1 High Energy Physics - Experiment
Authors: Yue Xu , Xiaorong Zhou , Xiaodong Shi , Yongxin Guo , Kuiyong Liu , Li Gong , Xiaoshen Kang
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Abstract

The process of J/ψ→ΛΛˉJ/\psi \to \Lambda \bar{\Lambda} is studied using 1.0×10121.0\times10^{12} J/ψJ/\psi Monte Carlo (MC) events at s\sqrt{s}=3.097 GeV with a fast simulation software at future Super Tau Charm Facility (STCF). The statistical sensitivity for CPCP violation is determined to be the order of O(10−4)\mathcal{O} (10^{-4}) by measuring the asymmetric parameters of the Λ\Lambda decay. Furthermore, the decay of J/ψ→ΛΛˉJ/\psi \to \Lambda \bar{\Lambda} also serves as a benchmark process to optimize the detector responses using the interface provided by the fast simulation software.

Keywords

hadron decays

Cite

@article{arxiv.2301.04337,
  title  = {Sensitivity of $CP$ Violation of $\Lambda$ decay in $J/\psi \to \Lambda \bar{\Lambda}$ at STCF},
  author = {Yue Xu and Xiaorong Zhou and Xiaodong Shi and Yongxin Guo and Kuiyong Liu and Li Gong and Xiaoshen Kang},
  journal= {arXiv preprint arXiv:2301.04337},
  year   = {2023}
}

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