Published September 27, 1990 | Version v1
Journal article Metadata-only

The pion resonance in the linear chiral sigma model

Creators

  • 1. Sao Paulo Univ. (Brazil). Inst. de Fisica
  • 2. Coimbra Univ. (Portugal). Centro de Fisica Teorica

Description

A semiclassical version of the linear σ model is studied in a variational approach for the generators of the mesonic excitations. The method offers a convenient framework to study the mesonic spectroscopy for both bound states and resonances. The strength distribution of the pionic mode is obtained. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
248
Journal Issue
1/2
Series
Phys. Lett., B.
Journal Page Range
21-27
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
22007406
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ANALYTICAL SOLUTION; BOUND STATE; CHIRALITY; COLLECTIVE EXCITATIONS; COLLECTIVE MODEL; DENSITY MATRIX; ENERGY DEPENDENCE; EQUATIONS OF MOTION; EXCITED STATES; GROUND STATES; HARTREE-FOCK METHOD; LAGRANGE EQUATIONS; LAGRANGIAN FUNCTION; MEAN-FIELD THEORY; NUCLEAR REACTIONS; NUCLEAR STRUCTURE; PIONS; QUARK MATTER; QUARK MODEL; QUARKONIUM; RANDOM PHASE APPROXIMATION; RESONANCE; SEMICLASSICAL APPROXIMATION; SIGMA MODEL; SLATER METHOD; STRENGTH FUNCTIONS; TIME DEPENDENCE; VACUUM STATES; VARIATIONAL METHODS
Descriptors DEC
BOSON-EXCHANGE MODELS; BOSONS; COMPOSITE MODELS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EQUATIONS; EXCITATION; FUNCTIONS; HADRONS; MATHEMATICAL MODELS; MATRICES; MATTER; MESONS; NUCLEAR MODELS; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PERIPHERAL MODELS; PSEUDOSCALAR MESONS