Determination of the charged-pion coupling constant from data on the charge-exchange reaction p p r arrow n n

Journal Article · Mon Aug 26 04:00:00 EDT 1991 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.67.1074· OSTI ID:5310226

Timmermans, R G.E.; Rijken, T A; de Swart, J J ^[1]

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1. Institute for Theoretical Physics, University of Nijmegen, Nijmegen (The Netherlands)

The coupling constant of the charged pions to nucleons is extracted from a partial-wave analysis of antinucleon-nucleon scattering data below {ital p}{sub lab}=950 MeV/{ital c}. For the value at the pion pole we find {ital f}{sub {ital c}}{sup 2}=0.0751{plus minus}0.0017 or equivalently {ital g}{sub {ital c}}{sup 2}=13.6{plus minus}0.3. This result is in agreement with the value found in the recent VPI SU analysis of {pi}{ital N} scattering data. Comparing with the neutral-pion coupling constant as determined in the Nijmegan phase-shift analysis of proton-proton scattering data, we see no evidence for a charge dependence of the pion-nucleon coupling constants.

• OSTI ID: 5310226
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 67:9; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BOSON-EXCHANGE MODELS
CHARGE EXCHANGE
COUPLING CONSTANTS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY RANGE
FIELD THEORIES
FORM FACTORS
HADRON-HADRON INTERACTIONS
INTERACTIONS
LAGRANGIAN FIELD THEORY
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEON-ANTINUCLEON INTERACTIONS
OBE MODEL
OPE MODEL
PARAMETRIC ANALYSIS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
PHASE SHIFT
PION-NUCLEON INTERACTIONS
PROTON-ANTIPROTON INTERACTIONS
QUANTUM FIELD THEORY