The Nuclear matter stability in a non-local chiral quark model

Details The Nuclear matter stability in a non-local chiral quark model The Nuclear matter stability in a non-local chiral quark model

2005-10-13

arxiv.org/abs/nucl-th/0510041v2

Nucl.Phys. A769 (2006) 35-52

Physics

Nuclear Physics

Nuclear Theory

25 pages (RevTeX), 7 figures (eps), references added, new appendix on numerical methods, revised version to be published in Nu

Scientific paper

10.1016/j.nuclphysa.2006.01.015

We study the stability of the nuclear matter in a non-local Nambu-Jona-Lasinio model. We work out the equation of state in a relativistic Faddeev approach where we take into account the internal structure of nucleon. We show that the binding energy saturates when the nucleon as a composite particle made of quarks is incorporated. After truncation of the two-body channels to the scalar and axial-vector diquarks, a relativistic Faddeev equation for nucleon bound states in medium is solved in the covariant diquark-quark picture. We investigate the nucleon properties in the nuclear medium such as the role of diquarks within the nucleon and the in-medium modification of the nucleon mass and size.

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