Super-Asymmetric Fission Mode in 254 Fm Nucleus Populated by 16 O + 238 U Reaction

Tathagata Banerjee,E. M. Kozulin,K. B. Gikal,I. M. Itkis, G. N. Knyazheva, N. I. Kozulina,K. V. Novikov, I. N. Diatlov, I. V. Pchelintsev,A. N. Pan, I. V. Vorobiev

Physics of Particles and Nuclei(2022)

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摘要
The mass-energy distributions of fission fragments of 254 Fm compound nucleus formed in the reaction 16 O + 238 U have been measured at two lab energies E_lab = 89 and 101 MeV. The experimental data have been described by the multimodal random neck-rupture model. Channel probabilities and the characteristics of different fission modes are obtained and discussed in details. At ∼45 MeV excitation, the enhancement of the mass yield ( 10 –2
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