arXiv subjects

T. Moroi

Publications and source records attributed to T. Moroi.

20 records · Page 2Linked to original sources

arXiv1994

A Solution to the Polonyi Problem in the Minimum SUSY-GUT

We show that the Polonyi problem is solved in the minimum SUSY-GUT model in which a self-coupling strength for a heavy Higgs $Σ$, $λΣ^{3}$, is very small $λ\sim 10^{-6}$. It is stressed that with this small $λ$ the mass of the physical $Σ$ becomes $m_Σ \sim 10^{12}\GEV$ and the unification scale is raised up to the gravitational one, $M\simeq 2\times 10^{18}\GEV$. A potential problem, however, is also pointed out in this GUT model.

hep-ph↗

arXiv1993

The Weinberg Angle Without Grand Unification

We assume that strong and electroweak interactions become strong at very high energies. With this assumption, we compute the low-energy gauge coupling constants $α_i (m_Z)$ as a function of the cutoff scale, taking the supersymmetric standard model with $3+2n$ families of quark and lepton multiplets. We find that only the five family case $(n=1)$ is consistent with the experimental values of the gauge coupling constants. This suggests the presence of a pair of families at $\sim 1$~TeV.

hep-ph↗