Published January 20, 1990 | Version v1
Journal article Metadata-only

Limits set by analyticity and current algebra on the existance of a heavy nucleon

Creators

  • 1. Centro Atomico Bariloche, Comision Nacional de Energia Atomica, Bariloche (Argentina)
  • 2. Inst. Nazionale di Fisica Nucleare, Sezione di Roma and Dept. di Fisica, Univ. della Calabria, Rende (Italy)

Description

In this paper, the authors estimate through the analysis of dispersion relations and current algebra sum rules that the experimentally searched excited state of nucleon with mass below pion-nucleon threshold must have a coupling one order of magnitude smaller than the normal pion- nucleon one gπNN2 as an upper bound

Additional details

Publishing Information

Journal Title
Modern Physics Letters A
Journal Volume
5
Journal Issue
2
Series
Mod. Phys. Lett. A.
Journal Page Range
101-106
ISSN
0217-7323
CODEN
MPLAE

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23006265
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
COUPLING; CURRENT ALGEBRA; DISPERSION RELATIONS; EXCITED STATES; NUCLEONS; PION-NUCLEON INTERACTIONS; SUM RULES; THRESHOLD ENERGY
Descriptors DEC
BARYONS; ELEMENTARY PARTICLES; ENERGY; ENERGY LEVELS; EQUATIONS; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS