Mechanism of Fusion Hindrance and Predictions of SHE Production

Y. Abe (1) , Caiwan Shen (2) , D. Boilley (3, 4) , B.G. Giraud (5) , G. Kosenko (6)

1 RCNP - Research Center for Nuclear Physics
2 School of Science
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 UNICAEN - Université de Caen Normandie
5 Institut de Physique Thèorique
6 Department of Physics

It is shown that in the encounter of two incident ions the system quickly starts to fill out the neck crevice of the di-nucleus system to form a super-deformed mono-nucleus. The probability of forming the spherical compound nucleus is obtained, starting with the super-deformed nucleus, with the dissipation-fluctuation dynamics, which gives rise to an extremely small fusion probability. With the statistical theory of decay, survival probability of the compound nucleus is calculated. Examples of calculated excitation functions for Super-Heavy Element(SHE) are given.

Domaines: Physique Nucléaire Théorique [nucl-th]

Y. Abe, Caiwan Shen, D. Boilley, B.G. Giraud, G. Kosenko. Mechanism of Fusion Hindrance and Predictions of SHE Production. The 10th International Conference on Nucleus-Nucleus collisions (NN2009), Aug 2009, Beijing, China. pp.349c-352c, ⟨10.1016/j.nuclphysa.2010.01.037⟩. ⟨in2p3-00459284⟩