Nonlinear. sigma. models and supersymmetry-breaking effects in supergravity

Journal Article · Fri May 15 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.3636· OSTI ID:7235514

Goto, T; Okada, Y ^[1]

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1. Department of Physics, Tohoku University, Sendai 980 (Japan)

Supersymmetry-breaking effects on U({ital m}+{ital n})/U({ital m}){times}U({ital n}) nonlinear {sigma} models are studied in the framework of minimal supergravity. It is shown that, in a total doubling realization model, full U({ital m}+{ital n}) nonlinearly realized symmetry is retained even after supersymmetry breaking in the hidden sector, while coset symmetry is explicitly broken in the hidden sector coupling in a pure realization model. In a total doubling case, effective superpotential terms as well as soft breaking terms are induced, resulting in superpartners of Nambu-Goldstone bosons (quasi Nambu-Goldstone bosons and fermions) with masses which are determined by the gravitino mass. An application to the Higgs sector in the supersymmetric standard model is also discussed.

• OSTI ID: 7235514
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:10; ISSN PRVDA; 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-)
662240 -- Models for Strong Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSON-EXCHANGE MODELS
BOSONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
GOLDSTONE BOSONS
HIGGS BOSONS
LAGRANGIAN FUNCTION
MATHEMATICAL MODELS
MULTIPLETS
NONLINEAR PROBLEMS
PARTICLE MODELS
PERIPHERAL MODELS
POSTULATED PARTICLES
SIGMA MODEL
STANDARD MODEL
SUPERGRAVITY
SUPERMULTIPLETS
SUPERSYMMETRY
SYMMETRY
SYMMETRY BREAKING
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES