Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-06-25
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 9 figures. To appear in the proceedings of Workshop on Quark Nuclear Physics; Nuclear and Hadronic Systems and Quark
Scientific paper
We study the structure of the nuclear force by using a path-integral hadronization approach in a chiral quark-diquark model. After the construction of the chiral quark-diquark model, we hadronize it to obtain a meson-baryon Lagrangian. The effective meson-baryon Lagrangian incorporates chiral symmetry and the composite description of the mesons and baryons. Using the effective meson-baryon Lagrangian we investigate the structure of the nuclear force in the simple case of neglecting the axial-vector diquark. It is shown that the meson-baryon Lagrangian contains two kinds of the nuclear force; the meson-exchange interaction and a quark-diquark loop interaction. It is also shown that the quark-diquark loop interaction consists of the scalar and vector interactions. The properties of these interactions are discussed.
Hosaka Atsushi
Nagata Keitaro
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