Published March 2004
| Version v1
Journal article
Effect of instanton on the QCD sum rule of 0++ glueball
Creators
- 1. Zhejiang Univ., Hangzhou (China). Zhejiang Inst. of Modern Physics
Description
The authors investigate the instanton effects to the mass of 0++ glueball by QCD sum rule approach. The instantons are assumed to be free from each other and be with definite density varying with their sizes. The authors find the upper bound of mass of the 0++ glueball is 1.3 GeV and very possibly the mass can be as low as 1 GeV. Besides, the instanton effects greatly improve the stability of the sum rule and overtake the contribution of quarks and gluons condensate. The centre size of instantons at 1/3 fm can give the stablest sum rule
Additional details
Publishing Information
- Journal Title
- High Energy Physics and Nuclear Physics
- Journal Volume
- 28
- Journal Issue
- 3
- Journal Page Range
- p. 245-249
- ISSN
- 0254-3052
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 36026897
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- GEV RANGE 01-10; GLUEBALLS; GLUON CONDENSATION; GLUONS; INSTANTONS; MASS; QUANTUM CHROMODYNAMICS; QUARK CONDENSATION; QUARKS; STABILITY; SUM RULES
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; FERMIONS; FIELD THEORIES; GEV RANGE; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUASI PARTICLES