Gauge theory in deformed N = (1, 1) superspace

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S1063779608050031· OSTI ID:22981715

We review the non-anticommutative Q-deformations of N = (1, 1) supersymmetric theories in four-dimensional Euclidean harmonic superspace. These deformations preserve chirality and harmonic Grassmann analyticity. The associated field theories arise as a low-energy limit of string theory in specific backgrounds and generalize the Moyal-deformed supersymmetric field theories. A characteristic feature of the Q-deformed theories is the half-breaking of supersymmetry in the chiral sector of the Euclidean superspace. Our main focus is on the chiral singlet Q-deformation, which is distinguished by preserving the SO(4) ∼ Spin(4) “Lorentz” symmetry and the SU(2) R-symmetry. We present the superfield and component structures of the deformed N = (1, 0) supersymmetric gauge theory as well as of hypermultiplets coupled to a gauge superfield: invariant actions, deformed transformation rules, and so on. We discuss quantum aspects of these models and prove their renormalizability in the Abelian case. For the charged hypermultiplet in an Abelian gauge superfield background we construct the deformed holomorphic effective action.

• OSTI ID: 22981715
• Journal Information: Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 5 Vol. 39; ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACTION INTEGRAL
EUCLIDEAN SPACE
FOUR-DIMENSIONAL CALCULATIONS
GAUGE INVARIANCE
LOW-ENERGY LIMIT
QUANTUM FIELD THEORY
SO-4 GROUPS
STRING THEORY
SU-2 GROUPS
SUPERSYMMETRY