论文标题
$ su（5）$大统一和$ w $ -boson Mass
$SU(5)$ grand unification and $W$-boson mass
论文作者
论文摘要
已知通过添加伴随费米的最小$ su（5）$理论的现实扩展，可以预测LHC上可能可以访问的光真实费米和标量弱三重态。这些粒子除了在量规耦合统一中发挥关键作用外，还具有深远的现象学意义。通过SEESAW机制提供了中微子质量的可测试起源的Fermion三胞胎已经进行了广泛的讨论。标量三重态开发了真空期望值，可修饰$ w $ boson质量。我们表明，其低能量有效理论具有显着的预测性：在领先的近似中，所有涉及标量三重态的相关物理过程仅取决于其质量及其与标准模型$ W $质量值的偏差。
A realistic extension of the minimal $SU(5)$ theory consisting of the addition of an adjoint fermion is known to predict light real fermion and scalar weak triplets, potentially accessible at the LHC. These particles, in addition to playing a key role in gauge coupling unification, have profound phenomenological implications. The fermion triplet, that through the seesaw mechanism offers a testable origin of neutrino mass, has been already extensively discussed. The scalar triplet develops a vacuum expectation value that modifies the $W$-boson mass. We show that its low-energy effective theory is remarkably predictive: in the leading approximation, all the relevant physical processes involving the scalar triplet depend only on its mass and the deviation from the Standard Model $W$-mass value.
