The input of a top-quark mass in the region 25-55 GeV is shown to yield quite stringent bounds on the masses of the light Higgs bosons in a minimal version of the low-energy $N=1\mathrm{}$ supergravity theory with radiative breaking of electroweak symmetry. In particular, the lightest Higgs boson must weigh quite a bit less than $\frac{M_Z}{2}$.

• Received 5 June 1984

DOI:https://doi.org/10.1103/PhysRevD.30.2432