Published July 26, 1993
| Version v1
Journal article
Direct instantons in QCD nucleon sum rules
Creators
- 1. Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)
Description
We study the role of direct (i.e., small-scale) instantons in QCD correlation functions for the nucleon. They generate sizable nonperturbative corrections to the conventional operator product expansion, which improve the quality of both QCD nucleon sum rules and cure the long-standing stability problem, in particular, of the chirally odd sum rule
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 71
- Journal Issue
- 4
- Journal Page Range
- p. 484-487.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25004170
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRAL SYMMETRY; CORRECTIONS; CORRELATION FUNCTIONS; INSTANTONS; NUCLEONS; OPERATOR PRODUCT EXPANSION; QUANTUM CHROMODYNAMICS; STABILITY; SUM RULES
- Descriptors DEC
- BARYONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; QUANTUM FIELD THEORY; QUASI PARTICLES; SERIES EXPANSION; SYMMETRY