International Topical Meeting on Nuclear Research Applications and Utilization of Accelerators

4-8 May 2009, Vienna

Complex Particle Production by CEM03.03

M.I. Baznat¹, K.K. Gudima¹, S.G. Mashnik², and A.J. Sierk²

¹Institute of Applied Physics, Academy of Science of Moldova, Chişinău, Republic of Moldova
²Los Alamos National Laboratory, Los Alamos, New Mexico, USA

Corresponding Author: baznat@theor.jinr.ru

The coalescence, preequilibrium, evaporation, fission, and Fermi breakup models used by the last versions of our Cascade-Exciton Model event generator CEM03.03 have been extended recently to improve description of complex particles production from nuclear re-actions. Here, we test how CEM03.03 describes complex particle spectra and yields from all reactions included in the Mandatory List of the International Benchmark of models organized in 2008 under the auspices IAEA and discussed in details at the Satellite Meeting “Nuclear Spallation Reactions”, as well as from many other reactions not covered by the Mandatory List. On the whole, CEM03.03 describes reasonably well many measured data on production of d, t, He³, and He⁴ from various reactions. However, we identified several problems to be solved for a better description of complex particles emission from some re-actions, and we see a necessity to extend the preequilibrium emission for fragments heavier than He⁴, currently neglected by CEM03.03.

This work was partially supported by the U.S. Department of Energy at Los Alamos National
Laboratory under Contract No. DE–AC52–06NA25396.