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Angular momentum dependence of the prescission time of medium mass hot nuclei

Abstract : We have deduced the prescission time of hot nuclei as a function of the angular momentum from the light charged particle- and gamma ray-multiplicities measured simultaneously in coincidence with fully-damped binary decay fragments in the reaction of Ni-58 + Fe-56 at the incident energy of 10.0 MeV/nucleon. The prescission time was found to decrease as the angular momentum of the system increases. Theoretical calculations of the fissioning motion with the Langevin equation have shown that this dependence originates primarily from the change in the potential landscape due to the centrifugal energy.
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http://hal.in2p3.fr/in2p3-00022972
Contributor : Suzanne Robert <>
Submitted on : Tuesday, April 18, 2000 - 11:05:53 AM
Last modification on : Wednesday, September 16, 2020 - 4:07:23 PM

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  • HAL Id : in2p3-00022972, version 1

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K. Yuasa-Nakagawa, T. Nakagawa, K. Furutaka, K. Matsuda, Y. Futami, et al.. Angular momentum dependence of the prescission time of medium mass hot nuclei. Physics Letters B, Elsevier, 1998, 420, pp.25-30. ⟨in2p3-00022972⟩

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