论文标题

解释新的CDF II W Boson质量的模型,链接到Muon $ G-2 $和暗物质

A model explaining the new CDF II W boson mass linking to muon $g-2$ and dark matter

论文作者

Nagao, Keiko I., Nomura, Takaaki, Okada, Hiroshi

论文摘要

我们提出了一个模型,以解释CDFII协作报告的W Boson质量异常,该质量会暗示新的物理学(NP)。我们介绍异国情调的费米子;一个Isospin Doublet矢量般的Lepton,一个Isospin Singlet单单式矢量般的Lepton和Isospin Doublet intert标量。提出的模型提供了相当大的兆元异常磁矩(MUON $ g-2 $),这是由于中性惰性嵌入式标量玻色子的真实部分和假想部分之间没有手性抑制和非零质量差异。惰性标量质量平方的差异和类似矢量的异国情调的瘦素(主文本中的$ l',e'$)会影响倾斜参数。尤其是,$ t $ - 参数从零转移解释了W Boson质量异常。我们搜索允许的参数区域,以同时解释MUON $ G-2 $和W BOSON质量异常。我们还讨论了一个暗物质(DM)候选者,假设惰性标量场的实际部分是一个。我们发现较轻的DM质量受到青睐与实验约束相一致。

We propose a model to explain the W boson mass anomaly reported by the CDFII collaboration that would suggest new physics (NP). We introduce exotic fermions; one isospin doublet vector-like lepton, one isospin singlet singly-charged vector-like lepton, and an isospin doublet inert scalar. The proposed model provides sizable muon anomalous magnetic moment (muon $g-2$) due to no chiral suppression and nonzero mass difference between the real and imaginary parts of neutral inert scalar bosons. The inert scalar mass squared difference and vector-like exotic leptons ($L', E'$ in the main text) affect oblique parameters. Especially, the $T$-parameter shift from zero explains the W boson mass anomaly. We search for the allowed parameter region to explain both muon $g-2$ and W boson mass anomaly at the same time. We also discuss a dark matter (DM) candidate assuming the real part of the inert scalar field to be the one. We find that lighter DM mass is favored to be consistent with experimental constraints.

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