Superfield approach to the construction of effective action in quantum field theory with extended supersymmetry

Journal Article · Sun May 15 04:00:00 EDT 2016 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S1063779616030035· OSTI ID:22977446

Pletnev, N. G. ^[1]

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1. Center for Theoretical Physics, Tomsk State Pedagogical University, Tomsk (Russian Federation)

We review the current state of research on the construction of effective actions in supersymmetric quantum field theory. Special attention is paid to gauge models with extended supersymmetry in the superfield approach. The advantages of formulation of such models in harmonic superspace for the calculation of effective action are emphasized. Manifestly supersymmetric and manifestly gauge-invariant methods for constructing the low-energy effective actions and deriving the corrections to them are considered and the possibilities to obtain the exact solutions are discussed. The calculations of one-loop effective actions in N = 2 supersymmetric Yang–Mills theory with hypermultiplets and in N = 4 supersymmetric Yang–Mills theory are analyzed in detail. The relationship between the effective action in supersymmetric quantum field theory and the low-energy limit in superstring theory is discussed.

• OSTI ID: 22977446
• Journal Information: Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 3 Vol. 47; ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACTION INTEGRAL
EXACT SOLUTIONS
GAUGE INVARIANCE
LOW-ENERGY LIMIT
QUANTUM FIELD THEORY
SUPERSTRING THEORY
SUPERSYMMETRY