Published August 31, 1992
| Version v1
Journal article
QCD perturbation theory at low energies
Creators
- 1. T. W. Bonner Laboratory, Department of Physics, Rice University, Houston, Texas 77251 (United States)
Description
We apply the optimization procedure based on the principle of minimal sesitivity to the third-order calculation of Re+e-. The effective couplant remains finite, freezing to a value αs/π=0.26 at low energies. Using Poggio-Quinn-Weinberg smearing we find good agreement between theory and experiment right down to zero energy
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 69
- Journal Issue
- 9
- Journal Page Range
- p. 1320-1323.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24012800
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COUPLING CONSTANTS; CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; OPTIMIZATION; PARTICLE PRODUCTION; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARKS
- Descriptors DEC
- ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; PARTICLE INTERACTIONS; POSTULATED PARTICLES; QUANTUM FIELD THEORY