论文标题
W玻色质质量异常和大统一
W boson mass anomaly and grand unification
论文作者
论文摘要
众所周知，最近报道的W玻色子质量的变化很容易通过$ su（2）_l $ $ triplet higgs玻色子，如果获得零高电量的零，如果获得了$ O（1）$ GEV的真空期望值（VEV）。令人惊讶的是，在标准模型（SM）中添加TEV量表复杂的三胞胎玻色子玻色子会导致量规耦合的精确统一，约为$ 10^{14} $ GEV。我们认为这是$ su（5）$ Grand Unification的结果，并显示了Higgs田地的潜力，产生了弱尺度复杂$ SU（2）$ su（2）$ Triplet标量玻色子。尽管质子衰变约束似乎会注定如此低规模的统一，但我们表明，可以通过引入类似向量的费米子来避免约束，这些载体样费米子通过涉及肠道破坏Higgs领域的质量术语与Sm fermions混合。重要的是，最简单的可行模型仅需要添加一对类似向量的费米子，转换$ {\ bf 10} $和$ \ overline {\ bf 10} $。
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 $10^{14}$ 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 ${\bf 10}$ and $\overline{\bf 10}$.
