https://doi.org/10.1140/epja/s10050-020-00182-0
Regular Article –Theoretical Physics
Fission barriers of actinide nuclei with nuclear density functional theory: influence of the triaxial deformation
Department of Physics, Harbin Institute of Technology, Harbin, 150001, People’s Republic of China
* e-mail: yueshi@hit.edu.cn
Received:
4
January
2020
Accepted:
16
June
2020
Published online:
13
July
2020
The fission pathway of even–even actinide nuclei have been systematically calculated using the deformation-constrained nuclear density functional theory beyond the second fission barriers within the UNEDF1 energy-density functionals (EDFs). Our calculated results show that, allowing for triaxial deformation, the second fission barriers are lowered by a few hundreds of keV to 2 MeV. For the heaviest actinides, it is found that inclusion of triaxial deformation reduces the outer barrier significantly.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
