arXiv:hep-ph/9506393·v1·High Energy Physics — Phenomenology

Gauge Coupling Unification in GUT and String Models

P.H. Chankowski · Z. Pluciennik · S. Pokorski · C.E. Vayonakis

Abstract

The results for the running of the gauge couplings in the MSSM are up-dated by proper inclusion of all low scale effects. They are presented as predictions for the strong coupling constant in the scenario with only two parameters at the GUT scale ~ ( $α_{U}$ ~and ~ $M_{U}$ ) ~and as a mismatch of the couplings at the scales ~ $\sim 3 \times 1 0^{16}$ GeV ~and ~ $4 \times 1 0^{17}$ GeV, when all three couplings are taken as the experimental input.

Comments: 13 pages, raw latex, additional file contains uuencoded figures