Supersymmetric Euler-Heisenberg effective action: two-loop results
Creators
- 1. School of Physics M013, University of Western Australia, 35 Stirling Highway, Crawley W.A. 6009 (Australia)
Description
The two-loop Euler-Heisenberg-type effective action for N = 1 supersymmetric QED is computed within the background field approach. The background vector multiplet is chosen to obey the constraints DαWβ = D(αWβ) = const, but is otherwise completely arbitrary. Technically, this calculation proves to be much more laborious as compared with that carried out in hep-th/0308136 for N = 2 supersymmetric QED, due to a lesser amount of supersymmetry. Similarly to Ritus' analysis of spinor and scalar QED, the two-loop renormalisation is carried out using proper-time cut-off regularisation. A closed-form expression is obtained for the holomorphic sector of the two-loop effective action, which is singled out by imposing a relaxed super self-duality condition
Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of High Energy Physics
- Journal Volume
- 5
- Journal Issue
- 2007
- Journal Page Range
- p. 081
- ISSN
- 1126-6708
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38081290
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ACTION INTEGRAL; DUALITY; FEYNMAN DIAGRAM; QUANTUM ELECTRODYNAMICS; RENORMALIZATION; SCALARS; SUPERSYMMETRY; VECTORS
- Descriptors DEC
- DIAGRAMS; ELECTRODYNAMICS; FIELD THEORIES; INFORMATION; INTEGRALS; QUANTUM FIELD THEORY; SYMMETRY; TENSORS