Gauge Unification at the String Scale and Fermion Masses

1996/04/26 by B. C. Allanach, Allanach, B. C., Stephen F. King +2
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9604413

7 pages, 1 Postscript figure, uses epsf.sty

arxiv created 1996/04/26 · openalex publication_date 1996/04/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the context of the minimal supersymmetric standard model (MSSM), we discuss the introduction of exotic matter below the string scale M_X in order to achieve gauge unification at M_X (a constraint of a large class of string models). The possible types of exotic matter that can realise this are investigated and its effect on the top quark mass m_t is presented. The implementation of a theory of fermion masses which utilises the exotic matter is briefly discussed.

Related

• Gauge Coupling Unification due to Large String Threshold Corrections
• M-fluences on String Model Building
• Soft Supersymmetry Breaking Parameters and Minimal SO(10) Unification
• Grand Unification and the Standard Model
• Unification of Couplings and the Top Quark Sector in the Minimal Supersymmetric Standard Model