Published January 2013 | Version v1
Journal article Metadata-only

Light quark masses in multi-quark interactions

Creators

  • 1. Departamento de Fisica da Universidade de Coimbra, Centro de Fisica Computacional, Coimbra (Portugal)

Description

We suggest and discuss in detail a multi-quark three-flavor Lagrangian of the Nambu-Jona-Lasinio type, which includes a set of effective interactions proportional to the current quark masses. It is shown that within the dynamical chiral symmetry-breaking regime, the masses of the pseudo-Goldstone bosons and their chiral partners, members of the low-lying scalar nonet, are in perfect agreement with current phenomenological expectations. The role of the new interactions is analyzed. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2013-13014-y

Additional details

Identifiers

DOI
10.1140/epja/i2013-13014-y;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
49
Journal Issue
1
Journal Page Range
p. 1-8
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
44045812
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
A0-980 MESONS; CHIRAL SYMMETRY; CONFIGURATION MIXING; COUPLING CONSTANTS; EFFECTIVE MASS; F0-980 MESONS; FLAVOR MODEL; GOLDSTONE BOSONS; K*0-1430 MESONS; KERNELS; LAGRANGIAN FIELD THEORY; MANY-BODY PROBLEM; MASS FORMULAE; MESON NONETS; REST MASS; S QUARKS; SYMMETRY BREAKING; THEORETICAL DATA
Descriptors DEC
BOSONS; COMPOSITE MODELS; DATA; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; INFORMATION; INTERACTIONS; MASS; MATHEMATICAL MODELS; MESONS; MULTIPLETS; NUMERICAL DATA; PARTICLE MODELS; PARTICLE MULTIPLETS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUARK MODEL; QUARKS; SCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; SYMMETRY