Analysis of running coupling constant unification in string theory

1992/06/03 by Mary K. Gaillard, Rulin Xiu · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Nonlinear Waves and Solitons #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th

paper · pdf · doi:10.1016/0370-2693(92)90805-e

published as Phys.Lett. B296 (1992) 71-76 · 12 pages

arxiv created 1992/06/03 · openalex publication_date 1992/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

We use recently obtained 2-loop string coupling constants to analyze a class of string models based on orbifold compactification. Assuming weak coupling at the string scale and single-scale unification leads to restrictions on the spectrum of massive (between the string scale and the weak scale) matter supermultiplets and/or on the Kac-Moody algebra level.

Cited by

• Prospects for the direct detection of neutralino dark matter in orbifold scenarios
• Weak scale measurement constraints on string models
• Recent progress in weakly-coupled heterotic string phenomenology