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arXiv 2203.15499hep-ph
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中微子质量和味道异常之间的结合

Marriage between neutrino mass and flavor anomalies

J. Julio, Shaikh Saad, Anil Thapa

摘要:

中性跃迁和带电跃迁中美夸克衰变的轻子味普适性违反的实验提示需要扩展标准模型,其中标量轻子夸克(LQs)是主要候选者。此外,这些同样的LQ可以解决长期存在的紧张的μ子和最近报道的偏离电子$g-2$异常。这些诱人的味道异常在$2.5σ-4.2σ$的范围内存在差异,表明粒子物理学的标准模型最终可能会破裂。在这封信中,我们提出了一个统一的框架内,揭示了中微子质量的起源所有这些异常的决议。在这个模型中,解决味道异常的LQ穿过回路,并以两个回路的顺序产生中微子质量,同时满足对撞机搜索的所有约束,包括味道物理学的约束。

英文摘要:

Experimental hints for lepton flavor universality violation in beauty-quark decay both in neutral- and charged-current transitions require an extension of the Standard Model for which scalar leptoquarks (LQs) are the prime candidates. Besides, these same LQs can resolve the long-standing tension in the muon and the recently reported deviation in the electron $g-2$ anomalies. These tantalizing flavor anomalies have discrepancies in the range of $2.5σ-4.2σ$, indicating that the Standard Model of particle physics may finally be cracking. In this Letter, we propose a resolution to all these anomalies within a unified framework that sheds light on the origin of neutrino mass. In this model, the LQs that address flavor anomalies run through the loops and generate neutrino mass at the two-loop order while satisfying all constraints from collider searches, including those from flavor physics.

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