Chiral symmetry, Confinement and Nuclear Matter properties

Details Chiral symmetry, Confinement and Nuclear Matter properties Chiral symmetry, Confinement and Nuclear Matter properties

2007-09-17

arxiv.org/abs/0709.2596v1

Eur.Phys.J.ST 156:199-206,2008

Physics

Nuclear Physics

Nuclear Theory

Lecture given by G. Chanfray at the Theoretical Nuclear Physics School, 8-17 may 2007, Les Houches, France

Scientific paper

10.1140/epjst/e2008-00617-y

We discuss the possible influence of fundamental QCD properties such as spontaneous chiral symmetry breaking and nucleon substructure on nuclear matter properties. We propose a chiral version of the relativistic $\sigma-\omega$ model in which the attractive background scalar field is associated with the chiral invariant field governing the radial fluctuations of the quark condensate. Nuclear matter stability is ensured once the scalar response of the nucleon depending on the quark confinement mechanism is properly incorporated. The needed parameters are estimated from lattice results and a satisfactory description of bulk properties follows, the only really free parameter being the $\omega NN$ coupling constant. Pion loops can be also incorporated to obtain in a consistent way the finite density chiral susceptibilities. A good description of the asymmetry energy is obtained once the full rho meson exchange and Fock terms are included.

Affiliated with

Also associated with

No associations

Rating

Chiral symmetry, Confinement and Nuclear Matter properties does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chiral symmetry, Confinement and Nuclear Matter properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral symmetry, Confinement and Nuclear Matter properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-378646