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Comparisons of statistical multifragmentation and evaporation models for heavy-ion collisions |
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| Authors: | M B Tsang R Bougault R Charity D Durand W A Friedman F Gulminelli A Le Fèvre Al H Raduta Ad R Raduta S Souza W Trautmann R Wada |
| Institution: | (1) National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, 48824 East Lansing, MI, USA;(2) LPC/Ensicaen and University of Caen, 6 Bd du Maréchal Juin, F-14050 Caen cedex, France;(3) Chemistry Department, Washington University, 63130 St. Louis, MO, USA;(4) Department of Physics, University of Wisconsin, 53706 Madison, WI, USA;(5) Gesellschaft für Schwerionenforschung mbH, D-64291 Darmstadt, Germany;(6) Laboratori Nazionali del Sud and INFN, I-95123 Catania, Italy;(7) NIPNE, RO-76900 Bucharest-Magurele, Romania;(8) Instituto de Fisica, Universidade Federal do Rio de Janeiro, Cidade Universitária, CP 68528, 21945-970 Rio de Janeiro, Brazil;(9) Cyclotron Institute, Texas A&M University, 77843 College Station, TX, USA |
| Abstract: | The results from ten statistical multifragmentation models have been compared with each other using selected experimental observables. Even though details in any single observable may differ, the general trends among models are similar. Thus, these models and similar ones are very good in providing important physics insights especially for general properties of the primary fragments and the multifragmentation process. Mean values and ratios of observables are also less sensitive to individual differences in the models. In addition to multifragmentation models, we have compared results from five commonly used evaporation codes. The fluctuations in isotope yield ratios are found to be a good indicator to evaluate the sequential decay implementation in the code. The systems and the observables studied here can be used as benchmarks for the development of statistical multifragmentation models and evaporation codes. An erratum to this article is available at . |
| Keywords: | 25 70 Mn Projectile and target fragmentation 25 70 Gh Compound nucleus 25 70 Pq Multifragment emission and correlations |
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