Gauge coupling unification in heterotic string models with gauge mediated supersymmetry breaking

Journal Article · Fri Apr 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.075008· OSTI ID:21537744

Anandakrishnan, Archana; Raby, Stuart ^[1]

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1. Department of Physics, Ohio State University, 191, W. Woodruff Ave, Columbus, Ohio 43210 (United States)

We calculate the weak scale minimal supersymmetric standard model spectrum starting from a heterotic string theory compactified on an anisotropic orbifold. Supersymmetry breaking is mediated by vectorlike exotics that arise naturally in heterotic string theories. The messengers that mediate supersymmetry breaking come in incomplete grand unified theory (GUT) multiplets and give rise to nonuniversal gaugino masses at the GUT scale. Models with nonuniversal gaugino masses at the GUT scale have the attractive feature of allowing for precision gauge coupling unification at the GUT scale with negligible contributions from threshold corrections near the unification scale. The unique features of this minimally supersymmetric standard model spectrum are light gluinos and also large mass differences between the lightest and the next-to-lightest neutralinos and charginos which could lead to interesting signatures at the colliders.

• OSTI ID: 21537744
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
ANISOTROPY
COMPOSITE MODELS
COMPUTERIZED SIMULATION
CORRECTIONS
COUPLING
EXTENDED PARTICLE MODEL
FIELD THEORIES
GRAND UNIFIED THEORY
M-THEORY
MASS
MASS DIFFERENCE
MATHEMATICAL MODELS
MULTIPLETS
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUARK MODEL
SIMULATION
SPECTRA
STANDARD MODEL
STRING MODELS
STRING THEORY
SUPERSYMMETRY
SYMMETRY
SYMMETRY BREAKING
UNIFIED GAUGE MODELS