Published October 2003 | Version v1
Journal article Metadata-only

Flavor symmetry breaking and strangeness in the nucleon

Creators

  • 1. Institute for Theoretical Physics, Tuebingen University, D-72076, Tuebingen (Germany)

Description

We suggest that breaking of SU(3) flavor symmetry mainly resides in the baryon wave functions while the charge operators have no (or only small) explicit symmetry-breaking components. We utilize the collective coordinate approach to chiral soliton models to support this picture. In particular we compute the gA/gV ratios for hyperon beta-decay and the strangeness contribution to the nucleon axial current matrix elements and analyze their variation with increasing flavor symmetry breaking. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2002-10283-5

Additional details

Identifiers

DOI
10.1140/epja/i2002-10283-5;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
18
Journal Issue
2-3
Journal Page Range
p. 559-562
ISSN
1434-6001

Conference

Title
International conference on quark nuclear physics (QNP)
Dates
10-14 Jun 2002
Place
Juelich (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
35022933
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AXIAL-VECTOR CURRENTS; CHARGED-CURRENT INTERACTIONS; CHIRAL SYMMETRY; COUPLING CONSTANTS; FLAVOR MODEL; LAMBDA PARTICLES; MATRIX ELEMENTS; NUCLEONS; PARTICLE STRUCTURE; QUANTUM OPERATORS; SEMILEPTONIC DECAY; SIGMA PARTICLES; SOLITONS; STRANGENESS; SU-3 GROUPS; SYMMETRY BREAKING; VECTOR CURRENTS; WAVE FUNCTIONS; WEAK CHARGED CURRENTS; XI PARTICLES
Descriptors DEC
ALGEBRAIC CURRENTS; BARYONS; CHARGED CURRENTS; COMPOSITE MODELS; CURRENTS; DECAY; ELEMENTARY PARTICLES; FERMIONS; FUNCTIONS; HADRONS; HYPERONS; INTERACTIONS; LAMBDA BARYONS; LIE GROUPS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUARK MODEL; QUASI PARTICLES; SIGMA BARYONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY; SYMMETRY GROUPS; WEAK PARTICLE DECAY; XI BARYONS