Published 2020 | Version v1
Book Metadata-only

Origin of dramatic change of fission mode in fermium isotopes investigated using Langevin equation

Creators

  • 1. Kindai University, Graduate School of Science and Engineering Research, Higashi-Osaka, Osaka (Japan)
  • 2. Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki (Japan)

Description

We have performed the Langevin calculation to challenge the unsolved problem of fermium fissions. The calculated fission-fragment mass distributions (FFMDs) show a dramatic change from the mass-asymmetric shape for the lighter fermium isotopes (250-254Fm) to sharp symmetric shape for the heavier isotopes (256-260Fm). The sudden change of the FFMD is strongly regulated by the structure of the second fission barrier and the dynamical motion of the nucleus in the second minimum. (author)

Availability note (English)

Available from DOI: https://doi.org/10.7566/JPSCP.32.010003
Part of:
Proceedings of 13th international conference on nucleus-nucleus collisions

Additional details

Identifiers

DOI
10.7566/JPSCP.32.010003;

Publishing Information

Publisher
Physical Society of Japan
Imprint Place
Tokyo (Japan)
ISBN
978-4-89027-145-0
Imprint Title
Proceedings of 13th international conference on nucleus-nucleus collisions
Imprint Pagination
[453 p.]
Journal Page Range
p. 010003.1-010003.4

Conference

Title
13. international conference on nucleus-nucleus collisions
Acronym
NN 2018
Dates
4-8 Dec 2018
Place
Saitama (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52064270
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FISSION BARRIER; LANGEVIN EQUATION; NEUTRON-RICH ISOTOPES; NUCLEAR PHYSICS; SPONTANEOUS FISSION; TRANSACTINIDE ELEMENTS
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DECAY; ELEMENTS; ENERGY; EQUATIONS; FISSION; ISOTOPES; NUCLEAR DECAY; NUCLEAR POTENTIAL; NUCLEAR REACTIONS; PHYSICS; POTENTIAL ENERGY; POTENTIALS; RADIOISOTOPES; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS

Optional Information

Notes
20 refs., 2 figs.