发表机构
Pôle Théorie, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (UMR 9012), CNRS/IN2P3; Institut universitaire de France (IUF); New York University Abu Dhabi; Universidad Técnica Federico Santa María; Centro Científico-Tecnológico de Valparaíso; Millennium Institute for Subatomic Physics at the High-Energy Frontier, SAPHIR; School of Advanced Sciences, Vellore Institute of Technology; Center for Theoretical and Experimental Particle Physics, Facultad de Ciencias Exactas, Universidad Andrés Bello; Universidad Viña del Mar(无穷大物理研究所(IR2I); 法国大学学院; 阿布扎比纽约大学; 费德里科·圣玛丽亚技术大学; 瓦尔帕莱索科技中心; 高能前沿亚原子物理千年研究所(SAPHIR); 维洛尔理工学院高级科学学院; 安德烈斯·贝略大学精确科学学院理论及实验粒子物理中心; 维尼亚德尔马大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该模型通过逆跷跷板机制解释轻中微子质量等,基于扩展规范对称性,含多组分暗物质。利用MultiNest算法全局扫描其高维参数空间,符合多种观测约束,为研究暗物质等提供了新途径。
AI 中文摘要
我们考虑一个模型,它通过轻子生成解释了轻中微子质量的起源、宇宙的重子不对称性,并解释了具有多个组分的观测到的暗物质遗迹丰度。在这种情况下,通过逆跷跷板(ISS)机制产生有源中微子的马约拉纳质量,轻子数违反质量参数在三圈通过一种新颖的拓扑结构动态生成。该模型基于标准模型规范对称性通过全局\(U(1)'\)和离散\(\mathbb{Z}_2\otimes \mathbb{Z}_3\)的扩展。后者负责ISS轻子数违反参数的辐射起源,在全局\(U(1)'\)的自发破缺中幸存,同时确保暗区的稳定性。携带非平凡剩余电荷的最轻粒子是稳定的,成为潜在可行的暗物质候选者。该模型符合来自中微子数据、对撞机和高强度带电轻子味违反可观测量以及暗物质遗迹密度和直接探测的界限和约束。为了有效地探索模型的高维参数空间并识别现象学上可行的区域,我们使用MultiNest算法进行全局数值扫描。
英文摘要
We consider a model which provides an explanation of the origin of light neutrino masses, the baryon asymmetry of the Universe -- via leptogenesis -- and explains the observed dark matter relic abundance with several components. In this scenario, Majorana masses of the active neutrinos are produced by the inverse seesaw (ISS) mechanism with the lepton-number-violating mass parameter being dynamically generated at three loops with a novel topology. This model is based on an extension of the Standard Model gauge symmetry by a global $U(1)'$ and a discrete $\mathbb{Z}_2\otimes \mathbb{Z}_3$. The latter, which is responsible for the radiative origin of the ISS lepton-number-violating parameter, survives the spontaneous breaking of the global $U(1)'$ and, at the same time, ensures the stabilization of the dark sector. The lightest particles carrying non-trivial residual charges are stable, becoming potentially viable dark matter candidates. The model complies with bounds and constraints from neutrino data, collider and high-intensity charged lepton flavor-violating observables, as well as dark matter relic density and direct detection. To efficiently explore the model's high-dimensional parameter space and identify phenomenologically viable regions, we perform a global numerical scan using the MultiNest algorithm.
Comments45 pages, 12 figures, 3 appendices. Matches the version accepted by JHEP