Dissipative effects in fission investigated with proton-on-lead reactions
Paper i proceeding, 2016

The complete kinematic measurement of the two fission fragments permitted us to investigate dissipative effects at large deformations, between the saddle-point and the corresponding scission configurations. Up to now, this kind of study has only been performed with fusionfission reactions using a limited number of observables, such as the mass distribution of the fission fragments or the neutron multiplicities. However, the large angular momenta gained by the compound nucleus could affect the conclusions drawn from such experiments. In this work, the use of spallation reactions, where the fissioning systems are produced with low angular momentum, small deformations and high excitation energies, favors the study of dissipation, and allowed us to define new observables, such as postscission neutron multiplicities and the neutron excess of the final fission fragments as a function of the atomic number of the fissioning system. These new observables are used to investigate the dissipation at large deformations.

Författare

J. L. Rodriguez-Sanchez

Universidade de Santiagode Compostela

J. Benlliure

Universidade de Santiagode Compostela

J. Taieb

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

H. Alvarez-Pol

Universidade de Santiagode Compostela

L. Audouin

Institut de Physique Nucleaire Orsay

Y. Ayyad

Universidade de Santiagode Compostela

G. Belier

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

G. Boutoux

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

E. Casarejos

Universidad de Vigo

A. Chatillon

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

D. Cortina-Gil

Universidade de Santiagode Compostela

T. Gorbinet

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

Andreas Martin Heinz

Chalmers, Fysik, Subatomär fysik och plasmafysik

A. Kelic-Heil

GSI Helmholtzzentrum für Schwerionenforschung

B. Laurent

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

J. F. Martin

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

C. Paradela

Universidade de Santiagode Compostela

E. Pellereau

Le Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA)

B. Pietras

Universidade de Santiagode Compostela

D. Ramos

Universidade de Santiagode Compostela

C. Rodriguez-Tajes

Grand Accélérateur National d'Ions Lourds (GANIL)

D. M. Rossi

GSI Helmholtzzentrum für Schwerionenforschung

H. Simon

GSI Helmholtzzentrum für Schwerionenforschung

J. Vargas

Universidade de Santiagode Compostela

B. Voss

GSI Helmholtzzentrum für Schwerionenforschung

EPJ Web of Conferences

21016275 (ISSN) 2100014X (eISSN)

Vol. 117 Art. no. 08017- 08017

Ämneskategorier

Subatomär fysik

DOI

10.1051/epjconf/201611708017

ISBN

9788874381012