Published November 20, 1995 | Version v1
Journal article Metadata-only

The pion-nucleon coupling constant in QCD sum rules

Creators

  • 1. Tsukuba Univ., Sakura, Ibaraki (Japan). Inst. of Physics
  • 2. Institute for Nuclear Theory, NK-12, Univ. of Washington, Seattle, WA 98195 (United States)

Description

The pion-nucleon coupling constant gπN is studied on the basis of the QCD sum rules. Both the Borel sum rules and the finite energy sum rules for gπN are used to examine the effects of higher dimensional operators (up to dimension 7) and αs corrections in the operator product expansion. Agreement with the experimental number is reached only when Sπ/SN is greater than one, where Sπ (SN) is the continuum threshold for the gπN (nucleon) sum rule. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
594
Journal Issue
3
Journal Page Range
p. 294-310.
ISSN
0375-9474
CODEN
NUPABL

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
27012024
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CORRELATION FUNCTIONS; COUPLING CONSTANTS; MANY-DIMENSIONAL CALCULATIONS; OPERATOR PRODUCT EXPANSION; PION-NUCLEON INTERACTIONS; QUANTUM CHROMODYNAMICS; QUANTUM OPERATORS; SUM RULES
Descriptors DEC
EQUATIONS; FIELD THEORIES; FUNCTIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; MATHEMATICAL OPERATORS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; SERIES EXPANSION