论文标题
标准模型的超级运动扩展中的真空稳定性和标量质量
Vacuum stability and scalar masses in the superweak extension of the standard model
论文作者
论文摘要
我们在标准模型(SM)的超级效果扩展中研究标量扇区的允许参数空间。允许的区域由(i)真空的稳定性和(ii)扰动性达到普朗克量表的条件来定义,(iii)希格斯玻色子的极质量落入其实验测量范围中。我们以双环准确性采用重新归一化组方程和量子校正。我们研究了对所选值的无菌中微子的Yukawa耦合的依赖性。我们还通过精确测量W玻色子的质量来检查排除极限。我们使用两回路预测来限制参数空间的方法也可以应用于更简单的模型,例如以直接的方式进行SM的单元标量表扩展。
We study the allowed parameter space of the scalar sector in the superweak extension of the standard model (SM). The allowed region is defined by the conditions of (i) stability of the vacuum and (ii) perturbativity up to the Planck scale, (iii) the pole mass of the Higgs boson falls into its experimentally measured range. We employ renormalization group equations and quantum corrections at two-loop accuracy. We study the dependence on the Yukawa couplings of the sterile neutrinos at selected values. We also check the exclusion limit set by the precise measurement of the mass of the W boson. Our method for constraining the parameter space using two-loop predictions can also be applied to simpler models such as the singlet scalar extension of the SM in a straightforward way.