Published June 1988
| Version v1
Journal article
On strange quark scalar condensate in the nucleon
- 1. Leningrad Inst. of Nuclear Physics, Gatchina (USSR)
Description
A well known difficulty with a large value of the σ term in πN scattering is analysed from positions of the QCD sum rules approach. The matrix element is related to flavour singlet correlation function of two quark condensates at zero momentum. The splittings and are calculated and turn to be in agreement with SU3 relations. (orig.)
Additional details
Publishing Information
- Journal Title
- Z. Phys., C
- Journal Volume
- 39
- Journal Issue
- 2
- Series
- Z. Phys., C.
- Journal Page Range
- 225-229
- ISSN
- 0170-9739
- CODEN
- ZPCFD
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 19065364
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BOSE-EINSTEIN CONDENSATION; EXPECTATION VALUE; FLAVOR MODEL; MATRIX ELEMENTS; NUCLEONS; PARTICLE STRUCTURE; PION-NUCLEON INTERACTIONS; QUANTUM CHROMODYNAMICS; SIGMA TERMS; STRANGE PARTICLES; STRANGENESS; SUM RULES
- Descriptors DEC
- BARYONS; COMMUTATORS; COMPOSITE MODELS; CURRENT COMMUTATORS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUANTUM OPERATORS; QUARK MODEL