It is known that the recently reported shift of the W boson mass can be easily explained by an $SU{(2)}_L$ triplet Higgs boson with a zero hypercharge if it obtains a vacuum expectation value (VEV) of $O(1)$ GeV. Surprisingly, the addition of a TeV scale complex triplet Higgs boson to the standard model (SM) leads to a precise unification of the gauge couplings at around 10¹⁴ GeV. We consider that it is a consequence of $SU(5)$ grand unification and show a possible potential for the Higgs fields yielding a weak scale complex $SU(2)$ triplet scalar boson. Although it seems the proton decay constraint would doom such a low-scale unification, we show that the constraint can be avoided by introducing vector-like fermions which mix with the SM fermions through mass terms involving the VEV of GUT breaking Higgs field. Importantly, the simplest viable model only requires the addition of one pair of vector-like fermions transforming 10 and $\overline{\mathbf{10}}$.

众所周知，最近报道的 W 玻色子质量的移动可以很容易地用一个$\mathrm{小号}ü{(2)}_{\mathrm{大号}}$如果真空期望值 (VEV) 为$○(1)$锗钒。令人惊讶的是，在标准模型 (SM) 中添加 TeV 尺度的复三重态希格斯玻色子导致规范耦合精确统一在 10 ¹⁴ GeV 左右。我们认为这是由于$\mathrm{小号}ü(5)$大统一并显示出希格斯场产生弱尺度复合体的可能潜力$\mathrm{小号}ü(2)$三重标量玻色子。尽管质子衰变约束似乎注定了这种低尺度的统一，但我们表明，可以通过引入类矢量费米子来避免这种约束，这些费米子通过涉及 GUT 打破希格斯场的 VEV 的质量项与 SM 费米子混合。重要的是，最简单的可行模型只需要添加一对类矢量费米子，将10和$\overline{\mathbf{10}}$.