How accurately can we predict synthesis cross-sections of superheavy elements?

David Boilley (1, 2) , Bartholomé Cauchois (1, 2) , Hongliang Lu (1, 2) , Anthony Marchix (3) , Yasuhisa Abe (4) , Caiwan Shen (5)

1 GANIL - Grand Accélérateur National d'Ions Lourds
2 UNICAEN - Université de Caen Normandie
3 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
4 RCNP - Research Center for Nuclear Physics
5 School of Science

Synthesis of superheavy elements beyond oganesson is facing new challenges as new target-projectile combinations are necessary. Guidance from models is thus expected for future experiments. However, hindered fusion models are not well established and predictions in the fission barriers span few MeVs. Consequently, predictions are not reliable. Strategies to constrain both fusion hindrance and fission barriers are necessary to improve the predictive power of the models. But, there is no hope to get an accuracy better than one order of magnitude in fusion-evaporation reactions leading to superheavy elements synthesis.

Mots clés: uncertainty analysis; superheavy elements; nuclear reactions

Domaines: Physique Nucléaire Théorique [nucl-th]

David Boilley, Bartholomé Cauchois, Hongliang Lu, Anthony Marchix, Yasuhisa Abe, et al.. How accurately can we predict synthesis cross-sections of superheavy elements?. International Workshop on Nuclear Dynamics in Heavy-Ion Reactions (IWND2018), Jun 2018, Zhejiang, China. pp.172, ⟨10.1007/s41365-018-0509-7⟩. ⟨in2p3-01890760⟩