Constraints From Gauge Coupling Unification On The Scale Of Supersymmetry Breaking

Ellis, John; Kelley, S.; Nanopoulos, D. V.

Constraints From Gauge Coupling Unification On The Scale Of Supersymmetry Breaking

Authors

Ellis, John

Kelley, S.

Nanopoulos, D. V.

Description

We reanalyze precision LEP data and coupling constant unification in the minimal supersymmetric $SU(5)$ model including the evolution of the gaugino masses. We derive general bounds on the primordial gaugino supersymmetry-breaking mass-scale $m_{1/2}$ in terms of the various input parameters. The model cannot accommodate $m_{1/2}<1\TeV$ for values of $\as < 0.115$, even for extreme $1-σ$ values of the other inputs. We emphasize the sensitivity of this type of calculations to the various input parameters.
9 pages, 1 figure not included, ACT-10/92