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Spontaneous fission half-lives of heavy and superheavy nuclei within a generalized liquid drop model

Abstract : We systematically calculate the spontaneous fission half-lives for heavy and superheavy nuclei between U and Fl isotopes. The spontaneous fission process is studied within the semi-empirical WKB approximation. The potential barrier is obtained using a generalized liquid drop model, taking into account the nuclear proximity, the mass asymmetry, the phenomenological pairing correction, and the microscopic shell correction. Macroscopic inertial-mass function has been employed for the calculation of the fission half-life. The results reproduce rather well the experimental data. Relatively long half-lives are predicted for many unknown nuclei, sufficient to detect them if synthesized in a laboratory.
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http://hal.in2p3.fr/in2p3-00805082
Contributor : Sylvie Flores <>
Submitted on : Wednesday, March 27, 2013 - 7:47:27 AM
Last modification on : Tuesday, February 11, 2020 - 10:26:05 AM

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Xiaojun Bao, Hongfei Zhang, G. Royer, Junqing Li. Spontaneous fission half-lives of heavy and superheavy nuclei within a generalized liquid drop model. Nuclear Physics A, Elsevier, 2013, 906, pp.1-13. ⟨10.1016/j.nuclphysa.2013.03.002⟩. ⟨in2p3-00805082⟩

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