Yukawa coupling unification with supersymmetric threshold corrections

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.6168· OSTI ID:7308516

Hempfling, R ^[1]

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1. Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22603 Hamburg (Germany)

Radiative corrections to the down-type fermion masses at the supersymmetric threshold are enhanced by the ratio of vacuum expectation values, tan[beta]. This can have a strong impact on the unification of Yukawa couplings in supersymmetric grand unified theories. We present an example of such a model with a horizontal gauge symmetry that naturally explains the fermion mass hierarchy and the small mixing angles of the Kobayashi-Maskawa matrix. The unification of the lepton and the down-quark Yukawa couplings is achieved without introducing large Higgs multiplets.

• OSTI ID: 7308516
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:11; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662210* -- Specific Theories & Interaction Models
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
ELEMENTARY PARTICLES
EXPECTATION VALUE
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
GRAND UNIFIED THEORY
HIGGS BOSONS
INVARIANCE PRINCIPLES
KOBAYASHI-MASKAWA MATRIX
MASS
MATHEMATICAL MODELS
MATRICES
MIXING
NUCLEAR POTENTIAL
PARTICLE MODELS
POSTULATED PARTICLES
POTENTIALS
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
RADIATIVE CORRECTIONS
SUPERSYMMETRY
SYMMETRY
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
VACUUM STATES
YUKAWA POTENTIAL