Skip to Main content Skip to Navigation
Conference papers

Asymmetric fission in 78Kr+40Ca reactions at 5.5 MeV/nucleon

Abstract : Decay modes of excited nuclei formed in the 78,82Kr+40Ca reactions at 5.5 AMeV are investigated by means of exclusive measurements using the INDRA detector at GANIL. Light‐charged particles in coincidence with fragments show that, in the mechanism of asymmetric fission, the light partner (with atomic number 6≤Z≤10) is produced at excitation energy below the emission particle threshold. This result provides important constraints on various key characteristics of the process as the energetic balance, the sharing of the excitation energy and the fragments cross‐sections indicate the influence of the nuclear level density at excitation energy below the emission threshold. Comparison with statistical and dynamical models suggests the role of multichance emission to explain the observed feature of the fragment cross‐sections. The set of data provides some hints for further explorations in the context of reactions induced with neutron rich projectile to be delivered in future facilities.
Document type :
Conference papers
Complete list of metadata

Cited literature [5 references]  Display  Hide  Download
Contributor : Michel Lion <>
Submitted on : Tuesday, February 14, 2012 - 3:54:32 PM
Last modification on : Friday, June 18, 2021 - 3:39:53 AM
Long-term archiving on: : Tuesday, May 15, 2012 - 2:20:17 AM


Publisher files allowed on an open archive



J.P. Wieleczko, G. Ademard, K. Mazurek, C. Schmitt, E. Bonnet, et al.. Asymmetric fission in 78Kr+40Ca reactions at 5.5 MeV/nucleon. Third International Workshop on Compound Nuclear Reactions and Related Topics (CNR11), Sep 2011, Prague, Czech Republic. pp.02001, ⟨10.1051/epjconf/20122102001⟩. ⟨in2p3-00625611⟩



Record views


Files downloads