Isospin Dependence of Incomplete Fusion Reactions at 25 Mev/a
F.Amorini, G.Cardella, G.Giuliani, M.Papa, C.Agodi, R.Alba,, A.Anzalone, I.Berceanu, S.Cavallaro, M.B.Chatterjee, R.Coniglione, E.De, Filippo, A.Di Pietro, E.Geraci, L.Grassi, A.Grzeszczuk, P.Figuera, E.La, Guidara, G.Lanzalone, N.Le Neindre, I.Lombardo, C.Maiolino, A.Pagano,
TL;DR
This study investigates how isospin influences incomplete fusion reactions at 25 MeV per nucleon, revealing effects on reaction mechanisms and providing constraints on nuclear symmetry energy models.
Contribution
It demonstrates the isospin dependence of incomplete fusion and compares experimental results with CoMD-II predictions to constrain symmetry energy parameters.
Findings
Lower compound system probability for N=Z systems.
Isospin affects the competition between fusion and dissipative reactions.
Results can constrain symmetry energy parameterizations.
Abstract
40Ca+40,48Ca,46Ti reactions at 25 MeV/A have been studied using the 4p CHIMERA detector. An isospin effect on the competition between incomplete fusion and dissipative binary reaction mechanisms has been observed. The probability of producing a compound system is observed to be lower in the case of N=Z colliding systems as compared to the case of reactions induced on the more neutron rich 48Ca target. Predictions based on CoMD-II calculations show that the competition between fusion-like and dissipative reactions, for the selected centrality, can strongly constraint the parameterization of symmetry energy and its density dependence in the nuclear equation of state.
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