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Using the effective potential approach for composite operators we have formulated the quantum model of the QCD vacuum. It is based on the existence and importance of the non-perturbative q -4 -type dynamical, topologically nontrivial excitations of the gluon field configurations. The QCD vacuum is found stable since the vacuum energy density has no imaginary part. We have also proposed...
We study the properties of H-dibaryon matter through the SO(3) Skyrmion solution on a three-dimensional hypersphere S 3 . As the density increases, the swelling of H-dibaryon is found. Above a critical density, the system becomes uniform in terms of the baryon density. In this uniform phase, the critical order parameter is largely reduced, which can be interpreted as the chiral symmetry restoration...
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