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Scalar response of the nucleon chiral symmetry and nuclear matter properties

G. Chanfray 1 M. Ericson 2
2 Théorie
CERN - European Organization for Nuclear Research
Abstract : In this talk we present a description of nuclear binding in a chiral approach based on the existence of a chiral invariant scalar field associated with the generation of the masses through spontaneous chiral symmetry breaking. We discuss the emergence of such a field on the example of the NJL model. We also incorporate the effect of confinement at the level of the nucleon substructure to stabilize nuclear matter. In a particular quark-diquark model we illustrate the simutaneous influences of spontaneous chiral symmetry breaking and confinement on the nucleon mass and on the nuclear matter description.
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Submitted on : Wednesday, April 7, 2010 - 4:09:12 PM
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G. Chanfray, M. Ericson. Scalar response of the nucleon chiral symmetry and nuclear matter properties. Achievements and New Directions in Subatomic Physics: Workshop in Honour of Tony Thomas' 60th Birthday, 2010, Adelaide, Australia. pp.31-36, ⟨10.1063/1.3479357⟩. ⟨in2p3-00471199⟩



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