Published November 1999
| Version v1
Journal article
Nambu-Jona-Lasinio model without q-barq thresholds
- 1. Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980 (Russian Federation)
Description
We consider an extended Nambu-Jona-Lasinio model for the light-meson sector of QCD where unphysical quark-production thresholds are excluded by an infrared cutoff on the momentum integration within quark-loop diagrams. This chiral quark model conserves low-energy theorems. The infrared cutoff is fixed by the dynamically generated quark mass (quark condensate). The sigma-meson mass and decay width are estimated within the model
Additional details
Publishing Information
- Journal Title
- Physics of Atomic Nuclei
- Journal Volume
- 62
- Journal Issue
- 11
- Journal Page Range
- p. 1919-1923
- ISSN
- 1063-7788
- CODEN
- PANUEO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35067236
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Translation
- Descriptors DEI
- CHIRAL SYMMETRY; LEVEL WIDTHS; MESONS; NUCLEAR DECAY; QUANTUM CHROMODYNAMICS; QUARK CONDENSATION; QUARK MODEL; QUARK-ANTIQUARK INTERACTIONS; SIGMA PARTICLES; THRESHOLD ENERGY; WILSON LOOP
- Descriptors DEC
- BARYONS; BOSONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; ENERGY; FERMIONS; FIELD THEORIES; HADRONS; HYPERONS; INTERACTIONS; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; SIGMA BARYONS; STRANGE PARTICLES; SYMMETRY
Optional Information
- Notes
- Translated from Yadernaya Fizika, ISSN 0044-0027, 62, 2071-2076 (November 1999); (c) 1999 MAIK/Interperiodika