AI 中文总结
该研究探讨在标准模型规范扩展的左右对称模型和$U(1)_{B-L}$模型中,如何利用HL-LHC探测长寿命重中微子的信号并表征其质量、宽度和量子数等性质。
AI 中文摘要
我们展示了在两种理论框架下,大型强子对撞机(LHC)如何探测具有 displaced 衰变的重中微子信号,这两种框架均利用扩展规范区作为通往此类新物理的通道,即左右对称模型和$U(1)_{B-L}$模型。此外,由于远离相互作用点的背景污染减少,我们说明在欧洲核子中心(CERN)的高亮度升级(HL-LHC)上可以清晰地获取重中微子的性质(质量、宽度和量子数)。
英文摘要
We show how signals of heavy neutrinos with displaced decays can be detected at the Large Hadron Collider in two theoretical setups, both exploiting extended gauge sectors as portals to such new physics, the Left-Right Symmetric Model and $U(1)_{B-L}$. Further, owing to the reduced contamination from backgrounds away from the interaction point, we illustrate how the properties of the heavy neutrinos (mass, width and quantum numbers) can neatly be accessed at the High-Luminosity upgrade of the CERN machine.
Comments12 pages, 14 figures