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Your search keyword '"Redon, A."' showing total 2 results
Start Over Author "Redon, A." Topic controlled fusion Topic nuclear physics
2 results on '"Redon, A."'

1. In-Beam γ-Ray Spectroscopy of the N=50 Isotones on the Neutron-Rich Side.

Author

Prévost, A., Astier, A., Deloncle, I., Porquet, M.-G., Azaiez, F., Buta, A., Curien, D., Dorvaux, O., Duchêne, G., Gall, B. J. P., Khalfallah, F., Piqueras, I., Rousseau, M., Ibrahim, F., Essabaa, S., Meyer, M., Redon, N., Stézowski, O., Venkova, Ts., and Lucas, R.

Subjects
*HIGH spin physics, *NUCLEAR fission, *CONTROLLED fusion, *NEUTRONS, *NUCLEAR physics, *DELAYED neutrons
Abstract

High-spin states of 84Se, produced as a fission fragment in the fusion-fission reaction 18O+208Pb and studied with the EUROBALL IV array, have been identified for the first time. Their interpretation gives new insights about the evolution of the N=50 shell gap at the vicinity of 78Ni. To characterize this evolution, it would be worth using a new device devoted to the high-spin studies of neutron-rich nuclei produced by asymetric fission modes. Such dedicated studies are reported in a second part. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2005
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2. High-spin excitations of 81, 82, 83, 85Se : Competing single-particle and collective structures around N = 50.

Author

Porquet, M., Astier, A., Venkova, Ts., Prévost, A., Deloncle, I., Azaiez, F., Buta, A., Curien, D., Dorvaux, O., Duchêne, G., Gall, B., Khalfallah, F., Piqueras, I., Rousseau, M., Meyer, M., Redon, N., Stézowski, O., Lucas, R., and Bogachev, A.

Subjects
*NUCLEAR physics, *CONTROLLED fusion, *SPIN excitations, *NUCLEAR reactions, *PROTON scattering, *NUCLEAR excitation
Abstract

The 81, 82, 83, 85Se nuclei have been produced as fission fragments in the fusion reaction 18O + 208Pb at 85MeV bombarding energy and studied with the Euroball IV array. Their high-spin level schemes have been built from the triple $ \gamma$ -ray coincidence data and $ \gamma$ - $ \gamma$ angular correlations have been analyzed in order to assign spin and parity values to many observed states. The lowest-spin states of the two-neutron and three-neutron configurations are strongly mixed with two-proton excitations among the fp orbits. On the other hand, the highest-spin states of these neutron configurations are found to remain almost pure. Neutron excitation across the N = 50 gap is observed both in 83Se49 and in 85Se51 . [ABSTRACT FROM AUTHOR]

Published
2009
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