New formulas and predictions for running fermion masses at higher scales in SM, 2HDM, and MSSM
New formulas and predictions for running fermion masses at higher scales in SM, 2HDM, and MSSM
复制标题
在 SM、2HDM 和 MSSM 中以更高尺度运行费米子质量的新公式和预测
DOI：
10.1007/s100520100628
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
M. K. Parida
中科院分区：
文献类型：
--
作者：
C. R. Das;M. K. Parida
抽象。包括贡献的尺度依赖的真空期望值，我们推导出新的解析公式，并获得实质上不同的数值预测夸克和带电轻子在更高的尺度在SM，2 HDM和MSSM的运行质量。这些公式表现出显着不同的行为就其依赖规范和汤川耦合从那些较早得出。在单圈水平上，在小混合极限下，三种有效理论的前两代质量都与第三代Yukawa耦合无关。本文还得到了$\tan\beta（\mu）$在2 HDM和MSSM中运行的解析公式。其他的数值分析包括研究第三代质量在高尺度下作为$\tan\beta$和超对称尺度$M_{\mathrm{S}}=M_Z-10^4$ GeV的低能值的函数。
Abstract. Including contributions of scale-dependent vacuum expectation values, we derive new analytic formulas and obtain substantially different numerical predictions for the running masses of quarks and charged leptons at higher scales in the SM, 2HDM and MSSM. These formulas exhibit significantly different behaviours with respect to their dependence on gauge and Yukawa couplings from those derived earlier. At one-loop level, the masses of the first two generations are found to be independent of the Yukawa couplings of the third generation in all three effective theories in the small mixing limit. Analytic formulas are also obtained for the running of $\tan\beta(\mu)$ in 2HDM and MSSM. Other numerical analyses include a study of the third generation masses at high scales as functions of the low-energy values of $\tan\beta$ and the SUSY scale $M_{\mathrm{S}}=M_Z-10^4$ GeV.