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Updated: May 9, 2025

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Setting Limits on Supersymmetry Using Simplified Models
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在ICARUS的Dimuon最终状态中搜索Kaon衰变中的隐藏部门标量器
F Abd Alrahman1, P Abratenko2, N Abrego-Martinez3
1University of Houston, Houston, Texas 77204, USA.
Physical review letters
|May 2, 2025
概括
这项研究在ICARUS探测器内寻找长寿命粒子分解成子,使用主注入器束中中微子的数据. 没有发现新的物理学,但对特定粒子模型设置了世界领先的极限.
科学领域:
- 粒子物理学 粒子物理学
- 实验物理实验物理学
- 宇宙学的宇宙学是什么?
背景情况:
- 隐藏部门模型为基础物理问题提供解决方案,例如强 CP 问题和暗物质起源.
- 卡昂衰变为产生和检测长寿命粒子 (LLPs) 提供了一个潜在的途径.
研究的目的:
- 为了寻找长寿命粒子 (LLPs) 分解为两个子,在ICARUS探测器内产生的子衰变中产生.
- 设置新的物理模型的限制,包括重型QCD轴子和希格斯门标量,基于信号的缺失.
主要方法:
- 利用了来自费米实验室主注入器 (NuMI) 中微子束的数据,对应于2.41×10^20质子对目标.
- 在ICARUS中微子探测器内分析的数据,用于LLP分解成子对 (μμ) 的签名.
主要成果:
- 没有观察到新的物理学的统计学显著信号,特别是LLP分解为子的信号.
- 为重型QCD轴子和希格斯门标尺模型建立了世界领先的排除极限.
- 呈现了过程K→π+S(→μμ的模型独立极限,其中S是一个LLP.
结论:
- 搜索没有证据表明研究道中的新物理.
- 结果为超越标准模型的理论提供了严格的约束.
- 这标志着ICARUS探测器的第一个新物理搜索,为未来对长寿命粒子的研究奠定了基础.
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