New Formulas and Predictions for Running Masses at Higher Scales in MSSM

Abstract

Including contributions of scale-dependent vacuum expectation values of Higgs scalars, we derive new one-loop formulas analytically for running quark-lepton masses at higher scales in MSSM. Apart from the gauge-coupling dependence being different from earlier formulas, the third-generation- Yukawa-coupling effects are absent in the masses of the first two generations. While predicting the masses and $\tan \beta$ numerically, we also include two-loop effects.

Comments: 9 pages Latex.Typos corrected