Evaluation of excitation energy and spin from light charged particles multiplicities in heavy-ion collisions

Details Evaluation of excitation energy and spin from light charged particles multiplicities in heavy-ion collisions Evaluation of excitation energy and spin from light charged particles multiplicities in heavy-ion collisions

2005-04-25

arxiv.org/abs/nucl-ex/0504025v1

Physics

Nuclear Physics

Nuclear Experiment

8 pages, 3 figures

Scientific paper

A simple procedure for evaluating the excitation energy and the spin transfer in heavy-ion dissipative collisions is proposed. It is based on a prediction of the GEMINI evaporation code : for a nucleus with a given excitation energy, the average number of emitted protons decreases with increasing spin, whereas the average number of alpha particles increases. Using that procedure for the reaction 107Ag+58Ni at 52 MeV/nucleon, the excitation energy and spin of quasi-projectiles have been evaluated. The results obtained in this way have been compared with the predictions of a model describing the primary dynamic stage of heavy-ion collisions.

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