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在LHC运行2期间的pp碰撞中搜索高度电离的粒子使用完整的MoEDAL探测器
B Acharya1, J Alexandre1, P Benes2
1Theoretical Particle Physics and Cosmology Group, Physics Department, King's College London, United Kingdom.
Physical review letters
|March 7, 2025
概括
这项研究使用MoEDAL探测器搜索磁单极 (MMs) 和高电荷物体 (HECOs). 它为这些假设粒子设定了世界上最强的电荷极限,推进了基础物理的研究.
科学领域:
- 高能粒子物理学 高能粒子物理学
- 寻找新的基本粒子的搜索
- 电磁和粒子属性 电磁和粒子属性
背景情况:
- 粒子物理学的标准模型没有预测磁单极 (MMs) 或高电荷物体 (HECOs).
- 对这些奇异粒子的实验性搜索对于探索超越标准模型的物理学至关重要.
- 大强子对撞机 (LHC) 的MoEDAL实验是专门设计用于检测高度电离粒子的.
研究的目的:
- 搜索磁单极 (MMs) 和高电荷物体 (HECOs) 的旋转为0,1/2和1.
- 为MM和HECO的生产截面和质量设定新的世界领先的限制.
- 在理论框架内解释搜索结果,如Drell-Yan和光子融合对生产.
主要方法:
- 首次使用完整的MoEDAL探测器阵列.
- 分析了6.46fb-1的质子对质子碰撞数据,其质量中心能量为13TeV.
- 采用能够直接校准重离子的探测器系统,用于检测高度电离的粒子.
主要成果:
- 直接生产的MM的质量限制达到10个迪拉克磁荷.
- 在10e至400e的范围内为HECO建立了电荷限值.
- 在MM和HECO的生产上设置了迄今为止世界上最严格的限制.
结论:
- 在全球范围内,MoEDAL实验给MM和HECO带来了最严格的约束.
- 结果显著缩小了这些假设粒子的参数空间.
- 莫达尔的独特功能为LHC的磁电荷测量提供了绝对的工具.
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