Chiral symmetry, scalar field and confinement: from nucleon structure to nuclear matter

Journal Article · Tue Dec 28 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3542008· OSTI ID:21511392

Chanfray, Guy ^[1]; Ericson, Magda ^[2]

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1. IPN Lyon, IN2P3/CNRS, Universite Lyon1 (France)
2. Theory Division, CERN, Geneva (Switzerland)

We discuss the relevance of the scalar modes appearing in chiral theories with spontaneous symmetry breaking such as the NJL model for nuclear matter studies. We show that it depends on the relative role of chiral symmetry breaking and confinement in the nucleon mass origin. It is only in the case of a mixed origin that nuclear matter can be stable and reach saturation. We describe models of nucleon structure where this balance is achieved. We show how chiral constarints and confinement modify the QCD sum rules for the mass evolution in nuclear matter.

• OSTI ID: 21511392
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1322; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BALANCES
BARYONS
CHIRAL SYMMETRY
CHIRALITY
ELEMENTARY PARTICLES
EQUATIONS
EVOLUTION
FERMIONS
FIELD THEORIES
HADRONS
MASS
MATTER
MEASURING INSTRUMENTS
NUCLEAR MATTER
NUCLEAR STRUCTURE
NUCLEONS
PARTICLE PROPERTIES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SATURATION
SCALAR FIELDS
SUM RULES
SYMMETRY
SYMMETRY BREAKING
WEIGHT INDICATORS