Published August 14, 1989
| Version v1
Journal article
A four-loop calculation of the metric β-function for the bosonic σ-model and the string effective action
Creators
- 1. Southampton Univ. (UK). Dept. of Physics
- 2. Liverpool Univ. (UK). Dept. of Applied Mathematics and Theoretical Physics
Description
We compute the four-loop (O(α'4)) metric β-function for the two-dimensional bosonic non-linear σ-model. We employ an indirect method which avoids a large part of the explicit calculation and as a by-product yields the corresponding four-loop low-energy string effective action. Using our result we are able to check previous four-loop computations for the supersymmetric σ-model. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics B, Particle Physics
- Journal Volume
- 322
- Journal Issue
- 2
- Series
- Nucl. Phys. B, Part. Phys.
- Journal Page Range
- 431-470
- ISSN
- 0550-3213
- CODEN
- NUPBB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20072889
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ACTION INTEGRAL; ANALYTIC FUNCTIONS; BOSONS; FEYNMAN DIAGRAM; LAGRANGIAN FIELD THEORY; METRICS; NONLINEAR PROBLEMS; PERTURBATION THEORY; RENORMALIZATION; RIEMANN SPACE; SIGMA MODEL; STRING MODELS; SUPERSYMMETRY; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- BOSON-EXCHANGE MODELS; DIAGRAMS; EXTENDED PARTICLE MODEL; FIELD THEORIES; FUNCTIONS; INFORMATION; INTEGRALS; MATHEMATICAL MODELS; MATHEMATICAL SPACE; PARTICLE MODELS; PERIPHERAL MODELS; QUANTUM FIELD THEORY; SPACE; SYMMETRY