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

Abstract : 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 $^{107}$Ag+$^{58)$Ni 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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Submitted on : Friday, January 5, 2007 - 2:32:53 PM
Last modification on : Tuesday, February 19, 2019 - 11:16:01 AM

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J.C. Steckmeyer, Z. Sosin, K. Grotowski, P. Pawlowski, S. Aiello, et al.. Evaluation of excitation energy and spin from light charged particles multiplicities in heavy-ion collisions. 2005. ⟨in2p3-00024564⟩

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