The existence of a magnetic monopole, if it exists, remains elusive. Experimental searches have been carried out and are continuing in this quest. Of great uncertainty is the mass of the monopole which is model-dependent and ranging from some Grand Unified scale to the electroweak scale. In this paper, we propose a model where topologically stable, finite-energy monopoles à la 't Hooft-Polyakov could exist with a mass proportional to the electroweak scale. This comes about in a model of neutrino masses where right-handed neutrinos are non-sterile whose electroweak-scale Majorana masses are obtained by the coupling to a complex triplet Higgs field. Custodial symmetry which insures $M_W=M_Z\cos {\theta }_W$ requires the introduction of another triplet Higgs field but real this time. It is this real Higgs triplet that is at the core of our proposal.

磁单极子（如果存在）的存在仍然难以捉摸。实验搜索已经进行，并且正在继续进行中。单极子的质量具有很大的不确定性，它取决于模型，范围从一些Grand Unified尺度到电弱尺度。在本文中，我们提出了在那里拓扑稳定，有限的能源单极子模型点菜特霍夫特-波利亚科夫可以与质量成正比，弱电规模存在。这是在中微子质量模型中实现的，其中右旋中微子是非无菌的，其电弱尺度的Majorana质量是通过耦合到复杂的三重态希格斯场获得的。保管对称性确保${\mathrm{中号}}_{\mathrm{w\; ^}}={\mathrm{中号}}_{ž}\cos {\theta }_{\mathrm{w\; ^}}$需要引入另一个三重态希格斯场，但是这次是真实的。正是这种真实的希格斯三重这是我们建议的核心。