In recent years the discovery of Super Heavy Element (SHE) with atomic number Z=108～116 has opened up a new era of research in nuclear physics, however, the extreme difficulties to synthesize SHE greatly restrict the...In recent years the discovery of Super Heavy Element (SHE) with atomic number Z=108～116 has opened up a new era of research in nuclear physics, however, the extreme difficulties to synthesize SHE greatly restrict the experimental studies on it, so that the theoretical studies are very important. The Relativistic Mean Field theory (RMF) is proved to be a simple and successful theory due to its great success in describing the bulk properties at the β-stable valley, as well as nuclei far from the β-stable line, and gives good predictions for nuclei far beyond the end of the known periodic table. In the framework of RMF we have calculated the properties on SHN such as the binding energy, the deformation, single and double neutron separation energy, and the a-decay half-life and so on for nuclei Z=108～114 and N=156～190. The axial deformations considered by using the expansion of harmonic oscillator basis. The Lagrangian wc have used is as the following form:展开更多
Many theoretical methods, such as the non-relativistic Brueckner approach, relativistic Brueckner approach, variational many body, the relativistic mean field theory, non-relativistic many body theory and the quarkmes...Many theoretical methods, such as the non-relativistic Brueckner approach, relativistic Brueckner approach, variational many body, the relativistic mean field theory, non-relativistic many body theory and the quarkmeson coupling model, have been used to explore the properties of neutron stars. In the present work, we shall study the properties of neutron stars within the framework of Hartree-Fock theory using the extended Skyrme effective interaction[1]. Many theoretical studies indicate that the relation between the single nucleon energy and the relative neutron excess satisfies the parabolic law approximately when δ and density p is not too high, the δ^4 and higher-order terms of δ are negligible, we shall show the higher-order terms of symmetry energy are important in studying neutron stars.展开更多
文摘In recent years the discovery of Super Heavy Element (SHE) with atomic number Z=108～116 has opened up a new era of research in nuclear physics, however, the extreme difficulties to synthesize SHE greatly restrict the experimental studies on it, so that the theoretical studies are very important. The Relativistic Mean Field theory (RMF) is proved to be a simple and successful theory due to its great success in describing the bulk properties at the β-stable valley, as well as nuclei far from the β-stable line, and gives good predictions for nuclei far beyond the end of the known periodic table. In the framework of RMF we have calculated the properties on SHN such as the binding energy, the deformation, single and double neutron separation energy, and the a-decay half-life and so on for nuclei Z=108～114 and N=156～190. The axial deformations considered by using the expansion of harmonic oscillator basis. The Lagrangian wc have used is as the following form:
文摘Many theoretical methods, such as the non-relativistic Brueckner approach, relativistic Brueckner approach, variational many body, the relativistic mean field theory, non-relativistic many body theory and the quarkmeson coupling model, have been used to explore the properties of neutron stars. In the present work, we shall study the properties of neutron stars within the framework of Hartree-Fock theory using the extended Skyrme effective interaction[1]. Many theoretical studies indicate that the relation between the single nucleon energy and the relative neutron excess satisfies the parabolic law approximately when δ and density p is not too high, the δ^4 and higher-order terms of δ are negligible, we shall show the higher-order terms of symmetry energy are important in studying neutron stars.
