Revisiting the even-odd staggering in fission fragment yields

M. Caamano 1 F. Rejmund 1 K.-H. Schmidt 1, 2
1 GANIL - Grand Accélérateur National d'Ions Lourds
2 GSI - Helmholtz zentrum für Schwerionenforschung GmbH
Abstract : The even-odd staggering observed in the experimental fission-fragment nuclear-charge yields is investigated over a wide systematics of fission fragments measured at Lohengrin in direct kinematics and at GSI in inverse kinematics. The general increase of the even-odd staggering in the fission-fragment charge yields towards asymmetric charge splits is explained by the absorption of the unpaired nucleons by the heavy fragment. As a consequence, the well established trend of evenodd staggering in the fission fragment charge yields to decrease with the fissility is attributed in part to the asymmetry evolution of the charge distribution. This interpretation is strongly supported by the data measured at GSI, which cover the complete charge distribution and include precise yields at symmetry. They reveal that the even-odd effect around symmetry remains constant over a large range of fissility.
keyword : Fission fragment yields even-odd staggering pairing dissipation
Document type :
Conference papers
Complete list of metadatas

Cited literature [9 references]  Display  Hide  Download
http://hal.in2p3.fr/in2p3-00385083
Contributor : Michel Lion <>
Submitted on : Friday, June 19, 2009 - 9:09:18 AM
Last modification on : Saturday, April 14, 2018 - 11:46:03 AM
Long-term archiving on: Monday, October 15, 2012 - 10:35:08 AM

File

frejmund.pdf
Files produced by the author(s)

Identifiers

Collections

CNRS | IN2P3 | GANIL | CEA | DSM-GANIL | CEA-DRF

Citation

M. Caamano, F. Rejmund, K.-H. Schmidt. Revisiting the even-odd staggering in fission fragment yields. 4th International Workshop on Nuclear Fission and Fission-Product Spectroscopy (FISSION 2009), May 2009, Saint Paul lez Durance, France. ⟨10.1063/1.3258244⟩. ⟨in2p3-00385083⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

540

Files downloads

229

Contact

CCSD