标题： 软对称破缺中的$ε$-标量质量解耦 显示英文标题

标题： Decoupling of the $ε$-scalar mass in softly broken supersymmetry

摘要： 最近的研究表明，为了通过维数缩减（$\drbar$）对软对称破缺的超对称理论进行适当的重整化，引入一个非物理的$\epsilon$-标量质量$\tilde{m}$是必要的。在这些理论中，标量质量的两环$\beta$-函数及其一环有限修正都依赖于$\tilde{m}^2$。然而，我们发现通过稍微修改\drbar 重整化方案，可以完全消除对$\tilde{m}^2$的依赖。 我们还表明，之前对超对称中单环修正的\drbar 计算忽略了$\tilde{m}^2$贡献，这相当于使用了这个修改后的方案。 显示英文摘要

摘要： It has been shown recently that the introduction of an unphysical $\epsilon$-scalar mass $\tilde{m}$ is necessary for the proper renormalization of softly broken supersymmetric theories by dimensional reduction ($\drbar$). In these theories, both the two-loop $\beta$-functions of the scalar masses and their one-loop finite corrections depend on $\tilde{m}^2$. We find, however, that the dependence on $\tilde{m}^2$ can be completely removed by slightly modifying the \drbar renormalization scheme. We also show that previous \drbar calculations of one-loop corrections in supersymmetry which ignored the $\tilde{m}^2$ contribution correspond to using this modified scheme.