Published August 1983
| Version v1
Journal article
Comparison of the QCD sum rules methods and perturbation QCD approach for the γprocess* γ * → π0
Description
The QCD sum rules method has been used to investigate the momentum transfer, Q2=-q12=-q22, dependence of the γ1*γ2* → π0 form factor throughout the region 0 < Q2 < infinity. The results is compared with the leading terms of the asymptotical 1/Q2 expansion of the form factor Fsub(γ*γ* → π0)(Q2), obtained within perturbative QCD approach. The analysis shows, that the QCD sum rules method an α the perturbative QCD method compare favourably and mutually complement each other
Additional details
Additional titles
- Original title (Russian)
- Сравнительный анализ методов KKhD правил сумм и пертурбативный KKhD для процесса γ * γ * â†' Ï€
Publishing Information
- Journal Title
- Yad. Fiz.
- Journal Volume
- 38
- Journal Issue
- 8
- Series
- Yad. Fiz.
- Journal Page Range
- 476-483
- ISSN
- 0044-0027
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 15029821
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ALGEBRAIC CURRENTS; ASYMPTOTIC SOLUTIONS; COMPARATIVE EVALUATIONS; CORRECTIONS; FEYNMAN DIAGRAM; FORM FACTORS; MOMENTUM TRANSFER; PARTICLE PRODUCTION; PERTURBATION THEORY; PHOTON-PHOTON INTERACTIONS; PIONS NEUTRAL; QUANTUM CHROMODYNAMICS; SUM RULES
- Descriptors DEC
- BASIC INTERACTIONS; BOSONS; CURRENTS; DIAGRAMS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EQUATIONS; FIELD THEORIES; HADRONS; INFORMATION; INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY
Optional Information
- Notes
- For English translation see the journal Soviet Journal of Nuclear Physics (USA).