Structure of the nuclear force in a chiral quark-diquark model

Details Structure of the nuclear force in a chiral quark-diquark model Structure of the nuclear force in a chiral quark-diquark model

2003-12-11

arxiv.org/abs/hep-ph/0312161v1

Prog.Theor.Phys. 111 (2004) 857

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 9 figures

Scientific paper

10.1143/PTP.111.857

We discuss the structure of the nuclear force using a lagrangian derived from hadronization of a chiral quark and diquark model. A generalized trace log formula including meson and nucleon fields is expanded to the order in which relevant terms emerge. It is shown that the nuclear force is composed of long and medium range parts of chiral meson exchanges and short range parts of quark-diquark exchanges. The ranges of the scalar and vector interactions coincide well with those of sigma ($\sigma$) and omega ($\omega$) meson exchanges if the size of the nucleon core of a quark-diquark bound state is adjusted appropriately.

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