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Path-integral approach in a chiral quark-diquark model to the nucleon structure and interactions

Keitaro Nagata·Atsushi Hosaka
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Abstract

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.

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Keitaro Nagata, Atsushi Hosaka. 2005-06-25. Path-integral approach in a chiral quark-diquark model to the nucleon structure and interactions. https://arxiv.org/abs/hep-ph/0506263

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