Published June 22, 1992
| Version v1
Journal article
The critical O(N) σ-model at dimension 2<d<4 and order 1/N2: Operator product expansions and renormalization
Description
A 1/N-expansion O[1/N2] is applied to the four-point function of O(N) vector fields. Conformal integrals for graphs are calculated. The necessary renormalizations are performed with different methods appropriate to each case. We compare the result with operator product expansions. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics. B, Particle Physics
- Journal Volume
- 377
- Journal Issue
- 1/2
- Series
- Nucl. Phys., B Part. Phys.
- Journal Page Range
- 371-401
- ISSN
- 0550-3213
- CODEN
- NUPBB
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 23080117
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ALGORITHMS; CONFORMAL INVARIANCE; FEYNMAN DIAGRAM; FEYNMAN PATH INTEGRAL; FIELD ALGEBRA; FIELD OPERATORS; NONLINEAR PROBLEMS; O GROUPS; OPERATOR PRODUCT EXPANSION; POWER SERIES; PROPAGATOR; QUANTUM FIELD THEORY; RADIATIVE CORRECTIONS; RENORMALIZATION; SIGMA MODEL; ULTRAVIOLET DIVERGENCES; VECTOR FIELDS; VERTEX FUNCTIONS
- Descriptors DEC
- BOSON-EXCHANGE MODELS; CORRECTIONS; DIAGRAMS; DYNAMICAL GROUPS; FIELD THEORIES; FUNCTIONS; INFORMATION; INTEGRALS; INVARIANCE PRINCIPLES; LIE GROUPS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; PARTICLE MODELS; PERIPHERAL MODELS; QUANTUM OPERATORS; SERIES EXPANSION; SYMMETRY GROUPS