Journal
PHYSICA SCRIPTA
Volume 96, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1402-4896/ac0f3f
Keywords
super-heavy nuclei; fusion cross section; mass uncertainty; fission barrier
Categories
Funding
- National Research Foundation of Korea (NRF) - Korean Ministry of Education, Science, and Technology (MEST) [NRF-2017R1D1A1B03030019, NRF-2020R1C1C1006029, NRF-2020R1A2C1005981, NRF-2016R1A5A1013277]
Ask authors/readers for more resources
In this study, a semi-empirical formula was developed for predicting fission barriers of super-heavy nuclei, showing significant differences and uncertainty in fission barrier predictions obtained from different models.
In this study, we developed a semi-empirical formula for predicting fission barriers of super-heavy nuclei (SHN), which have fissilities chi > 48.5428, based on a former formula proposed by Myers and Swiatecki [1999 Phys. Rev. C 60, 014 606]. We calculated fission barriers for isotopes with Z = 100-135 using our formula and the Lublin-Strasbourg Drop model. It was found that the macroscopic component of the fission barrier is less than 0.2 MeV, which is large enough to be considered with microscopic part for many SHN. These results were compared to each other and to those estimated using other approaches. Through evaluations of theoretical fission barriers, we found that there is a significant difference, up to a few MeV, between the results obtained from different models. In other words, recent fission barrier predictions are very uncertain. Finally, the results of this study are useful for estimating the spontaneous-fission lifetime and production cross sections of unknown super-heavy nuclei.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available