Transfer-induced fission in inverse kinematics: Impact on experimental and evaluated nuclear data bases
Journal article, 2015
Inverse kinematics is a new tool to study nuclear fission. Its main advantage is the possibility to measure with an unmatched resolution the atomic number of fission fragments, leading to new observables in the properties of fission-fragment distributions. In addition to the resolution improvement, the study of fission based on nuclear collisions in inverse kinematics beneficiates from a larger view with respect to the neutron-induced fission, as in a single experiment the number of fissioning systems and the excitation energy range are widden. With the use of spectrometers, mass and kinetic-energy distributions may now be investigated as a function of the proton and neutron number sharing. The production of fissioning nuclei in transfer reactions allows studying the isotopic yields of fission fragments as a function of the excitation energy. The higher excitation energy resulting in the fusion reaction leading to the compound nucleus Cf-250 at an excitation energy of 45MeV is also presented. With the use of inverse kinematics, the charge polarisation of fragments at scission is now revealed with high precision, and it is shown that it cannot be neglected, even at higher excitation energies. In addition, the kinematical properties of the fragments inform on the deformation configuration at scission.
Author
F. Farget
Grand Accélérateur National d'Ions Lourds (GANIL)
M. Caamano
Universidade de Santiagode Compostela
D. Ramos
Universidade de Santiagode Compostela
C. Rodriguez-Tajes
Grand Accélérateur National d'Ions Lourds (GANIL)
Universidade de Santiagode Compostela
K. H. Schmidt
Grand Accélérateur National d'Ions Lourds (GANIL)
L. Audouin
Institut de Physique Nucleaire Orsay
J. Benlliure
Universidade de Santiagode Compostela
E. Casarejos
University of Vigo
E. Clement
Grand Accélérateur National d'Ions Lourds (GANIL)
D. Cortina
Universidade de Santiagode Compostela
O. Delaune
Grand Accélérateur National d'Ions Lourds (GANIL)
X. Derkx
Grand Accélérateur National d'Ions Lourds (GANIL)
A. Dijon
Grand Accélérateur National d'Ions Lourds (GANIL)
D. Dore
B. Fernandez-Dominguez
Universidade de Santiagode Compostela
L. Gaudefroy
CEA Dam Ile-de France
C. Golabek
Grand Accélérateur National d'Ions Lourds (GANIL)
Andreas Martin Heinz
Chalmers, Fundamental Physics
B. Jurado
University of Bordeaux
A. Lemasson
Grand Accélérateur National d'Ions Lourds (GANIL)
C. Paradela
Universidade de Santiagode Compostela
T. Roger
Grand Accélérateur National d'Ions Lourds (GANIL)
M. D. Salsac
C. Schmitt
Grand Accélérateur National d'Ions Lourds (GANIL)
European Physical Journal A
1434-6001 (ISSN) 1434-601X (eISSN)
Vol. 51 12 1-9 175Subject Categories
Physical Sciences
DOI
10.1140/epja/i2015-15175-y