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Title: Search for a long lived component in the reaction U+U near the Coulomb barrier

Abstract

We performed an experiment to search for a signature of a long living component in the collision of 238U + 238U between 6.09 and 7.35A MeV. The experiment was performed at GANIL using the spectrometer VAMOS, tuned for observing reactions with kinematics similar to fusion-fission events. Theoretical calculations indicate that if a long living component would exist for this reaction, the most probable fission channel of such a giant system would be via the emission of quasi-lead nuclei. We detected events of such a category in the focal plane of VAMOS. These events present an excitation function growing as a function of the bombarding energy.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1]; ;  [2]; ;  [3]; ;  [4];  [5]
  1. GANIL (IN2P3/CNRS - DSM/CEA) B.P. 55027 14076 Caen Cedex 5 (France)
  2. GSI Planckstr. 1 64291 Darmstadt (Germany)
  3. VEC Center I/AF Bidhan Nagar Kolkata 700064 (India)
  4. SPhN - CEA/DSM/DAPNIA Gif sur Yvette Cedex (France)
  5. SUBATECH, 4 rue Alfred Kastler B.P. 20722 44307 Nantes CEDEX 3 (France) (and others)
Publication Date:
OSTI Identifier:
21056782
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 891; Journal Issue: 1; Conference: 6. Symposium on nuclear physics, Tours (France), 5-8 Sep 2006; Other Information: DOI: 10.1063/1.2713501; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COULOMB FIELD; EXCITATION FUNCTIONS; FISSION; GANIL CYCLOTRON; HEAVY ION FUSION REACTIONS; MAGNETIC SPECTROMETERS; MEV RANGE; URANIUM 238 REACTIONS; URANIUM 238 TARGET

Citation Formats

Villari, A. C. C., Golabek, C., Mittig, W., Boilley, D., De France, G., Gaudefroy, L., Marchix, A., Morjean, M., Navin, A., Rejmund, F., Rejmund, M., Roussel-Chomaz, P., Stodel, C., Heinz, S., Winkler, M., Bhattacharyya, S., Mukherjee, G., Dayras, R., Drouart, A., and Giot, L.. Search for a long lived component in the reaction U+U near the Coulomb barrier. United States: N. p., 2007. Web. doi:10.1063/1.2713501.
Villari, A. C. C., Golabek, C., Mittig, W., Boilley, D., De France, G., Gaudefroy, L., Marchix, A., Morjean, M., Navin, A., Rejmund, F., Rejmund, M., Roussel-Chomaz, P., Stodel, C., Heinz, S., Winkler, M., Bhattacharyya, S., Mukherjee, G., Dayras, R., Drouart, A., & Giot, L.. Search for a long lived component in the reaction U+U near the Coulomb barrier. United States. doi:10.1063/1.2713501.
Villari, A. C. C., Golabek, C., Mittig, W., Boilley, D., De France, G., Gaudefroy, L., Marchix, A., Morjean, M., Navin, A., Rejmund, F., Rejmund, M., Roussel-Chomaz, P., Stodel, C., Heinz, S., Winkler, M., Bhattacharyya, S., Mukherjee, G., Dayras, R., Drouart, A., and Giot, L.. Mon . "Search for a long lived component in the reaction U+U near the Coulomb barrier". United States. doi:10.1063/1.2713501.
@article{osti_21056782,
title = {Search for a long lived component in the reaction U+U near the Coulomb barrier},
author = {Villari, A. C. C. and Golabek, C. and Mittig, W. and Boilley, D. and De France, G. and Gaudefroy, L. and Marchix, A. and Morjean, M. and Navin, A. and Rejmund, F. and Rejmund, M. and Roussel-Chomaz, P. and Stodel, C. and Heinz, S. and Winkler, M. and Bhattacharyya, S. and Mukherjee, G. and Dayras, R. and Drouart, A. and Giot, L.},
abstractNote = {We performed an experiment to search for a signature of a long living component in the collision of 238U + 238U between 6.09 and 7.35A MeV. The experiment was performed at GANIL using the spectrometer VAMOS, tuned for observing reactions with kinematics similar to fusion-fission events. Theoretical calculations indicate that if a long living component would exist for this reaction, the most probable fission channel of such a giant system would be via the emission of quasi-lead nuclei. We detected events of such a category in the focal plane of VAMOS. These events present an excitation function growing as a function of the bombarding energy.},
doi = {10.1063/1.2713501},
journal = {AIP Conference Proceedings},
number = 1,
volume = 891,
place = {United States},
year = {Mon Feb 26 00:00:00 EST 2007},
month = {Mon Feb 26 00:00:00 EST 2007}
}