论文标题
暗物质，中微子质量和W-MAS异常
Singlet-Doublet Fermion Origin of Dark Matter, Neutrino Mass and W-Mass Anomaly
论文作者
论文摘要
由最近报道的W BOSON质量异常的激励，CDF合作的统计意义为$7σ$，我们考虑了Singlet-Doublet（SD）Majorana Fermion Dark Matter（DM）模型，其中所需的W Boson质量校正来自SD Fermions引起的辐射校正。尽管在不间断的$ z_2 $对称性下，一代一代SD费米子无法解释与DM现象学一致的W Boson质量异常，但两代SD Fermions可以做到这一点，而在W-Mass校正中起着优势的作用，并且在DM现象中发挥了较轻的作用，而在W-Mass校正中起着重要作用。此外，如果包括$ Z_2 $ -ODD SINGLET标量，这样的多代SD Fermions也可以辐射产生光中微子质量。
Motivated by the recently reported anomaly in W boson mass by the CDF collaboration with $7σ$ statistical significance, we consider a singlet-doublet (SD) Majorana fermion dark matter (DM) model where the required correction to W boson mass arises from radiative corrections induced by SD fermions. While a single generation of SD fermions, odd under an unbroken $Z_2$ symmetry, can not explain the W boson mass anomaly while being consistent with DM phenomenology, two generations of SD fermions can do so with the heavier generation playing the dominant role in W-mass correction and lighter generation playing the role in DM phenomenology. Additionally, such multiple generations of SD fermions can also generate light neutrino masses radiatively if a $Z_2$-odd singlet scalar is included.
