نوع مقاله: مقاله پژوهشی
نویسندگان
1 دانشکده فیزیک، دانشگاه دامغان، دامغان، ایران
2 گروه فیزیک، دانشکده علوم، دانشگاه فردوسی مشهد، مشهد، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this paper, we have studied the potential energy surfaces of nuclei with atomic numbers Z=90-100 within the microscopic-macroscopic Cranked Nilsson-Strutinsky (CNS) formalism, and calculated the axial quadrupole deformation parameter for these isotopes. Our calculations show that the nuclei in this mass region have an average deformation about in the ground state and an average deformation about in the isomeric state. With increasing the neutron number or proton number, the axial quadrupole deformation increases slightly and the potential minima appear at a relatively larger deformation. Therefore, in the studied mass region, the nucleus will be more elongated with increasing the mass number. We have also examined the effect of change of spin on the fission barrier height. We have compared the results obtained from the CNS model with the experimental results and also the results of other theoretical models. This comparison shows that the CNS models as well as the HFBCS model have the better accuracy in comparison with the other models and so are the proper models to produce the quadrupole deformation parameters of heavy and superheavy nuclei.
کلیدواژهها [English]
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