未来缪子对撞机上的香草型中微子质量模型
Vanilla Scotogenic Model at the future Muon Collider
- Indian Institute of Technology Guwahati(印度理工学院古瓦哈提分校)
- Homi Bhabha National Institute(霍米·巴巴国立研究所)
- Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes(格勒诺布尔阿尔卑斯大学亚原子与宇宙学实验室)
- Indian Institute of Science(印度科学学院)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
该研究分析了香草型微中子质量模型在缪子对撞机上的可探测性,发现长寿命粒子搜索比瞬发单光子信号更具前景,为探测该模型提供了有效途径。
AI中文摘要:
香草型微中子质量模型(VSM)包含三个右手中微子和一个惰性标量二重态,通过轻子生成机制统一解释了中微子质量、暗物质(DM)和宇宙重子不对称性。该模型的典型质量尺度在约10 TeV及以上,而增强的第二代汤川耦合将轻子生成尺度降低至约1 TeV,使得该模型能够在未来的缪子对撞机上被探测。在满足暗物质、中微子质量、轻子生成和味相关约束的条件下,带电标量很可能是一种长寿命粒子(LLP)。我们分析了该模型的瞬发和位移顶点信号,发现瞬发单光子信号仍然具有挑战性,但LLP搜索为探测该框架提供了一条有前景的途径,其可行性取决于时间分辨率和位移顶点重建效率。
英文摘要:
The vanilla scotogenic model (VSM) featuring three right-handed neutrinos and an inert scalar doublet, offers a unified explanation of neutrino masses, dark matter (DM), and the baryon asymmetry of the Universe through leptogenesis. The typical mass scale of such a scenario lies in the vicinity of $\sim$ 10 TeV and above, whereas enhanced second-generation Yukawa couplings lower the leptogenesis scale to $\sim 1$ \TeV, allowing the model to be probed at the future muon colliders. Adhering to DM, neutrino mass, Leptogenesis, and flavour dependent constraints, the charged scalar is likely to be a long-lived particle (LLP). We analyse both the prompt and displaced vertex signatures of the model to find that, prompt mono-photon signals remain challenging, but LLP searches offer a promising avenue to probe such a framework, subject to the timing resolutions, and displaced-vertex reconstruction efficiency.