Published November 2014 | Version v1
Journal article Metadata-only

A study of a relativistic quark-diquark model for the nucleon

Creators

  • 1. UNESP, Instituto de Fisica Teorica, Sao Paulo (Brazil)
  • 2. Universidad Nacional de Colombia, Departamento de Fisica, Bogota (Colombia)

Description

We develop a specific quark-diquark constituent model for the study of the nucleon and its excited states. A relativistic kinetic energy operator is used for both the quark and the diquark. Interaction terms depending on the spin and angular momentum operators are introduced to describe in detail the mass spectrum. Different values of the parameters in the interaction operators are taken for the scalar and axial-vector diquark states. The tensor interaction is also considered in the present model. The baryon spectrum is calculated up to resonance masses of 2 GeV. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2014-14169-7

Additional details

Identifiers

DOI
10.1140/epja/i2014-14169-7;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
50
Journal Issue
11
Journal Page Range
p. 1-9
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
46017964
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CENTRAL POTENTIAL; DELTA BARYONS; EXCITED STATES; HAMILTONIANS; ISOSPIN; MASS SPECTRA; N BARYONS; NUCLEONS; PARTICLE STRUCTURE; PAULI SPIN OPERATORS; QUARK MODEL; QUARK-QUARK INTERACTIONS; RELATIVISTIC RANGE; REST MASS; TENSOR FORCES; THEORETICAL DATA; WAVE FUNCTIONS
Descriptors DEC
ANGULAR MOMENTUM OPERATORS; BARYONS; COMPOSITE MODELS; DATA; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; FERMIONS; FUNCTIONS; HADRONS; INFORMATION; INTERACTIONS; MASS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; N*BARYONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; POTENTIALS; QUANTUM OPERATORS; SPECTRA