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29 March 2024
 
  » arxiv » nucl-th/0407097

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Analysis of the JINR p(660 MeV) + 129I, 237Np, and 241Am Measurements with Eleven Different Models
S. G. Mashnik ; V. S. Pronskikh ; J. Adam ; A. Balabekyan ; V. S. Barashenkov ; V. P. Filinova ; A. A. Solnyshkin ; V. M. Tsoupko-Sitnikov ; R. Brandt ; R. Odoj ; A. J. Sierk ; R. E. Prael ; K. K. Gudima ; M. I. Baznat ;
Date 27 Jul 2004
Subject nucl-th astro-ph nucl-ex
AbstractWe have analyzed the recent JINR measurements on nuclide production cross sections from interaction of 660 MeV proton beams with radioactive targets of enriched 129I (85% 129I and 15% 127I), 237Np, and 241Am with eleven different models, realized in eight transport codes and event-generators: LAHET (Bertini, ISABEL, INCL+ABLA, and INCL+RAL options), CASCADE, CEM95, CEM2k, LAQGSM+GEM2, CEM2k+GEM2, LAQGSM+GEMINI, and CEM2k+GEMINI. We found out that all these models have problems in a correct description of many of these cross sections, though some of these models describe very well most of the recent measurements done at GSI using inverse kinematics, as well as many other reactions. None of the tested here models is able to reproduce well all the JINR data and all of them should be further improved. Development of a better universal evaporation/fission model should be of a highest priority. We conclude that it is impossible to make a correct choice between fission and fragmentation reaction mechanisms analyzing only measurements on product cross sections; addressing this question would require analysis of two- or multi-particle correlation measurements.
Source arXiv, nucl-th/0407097
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