Correlations between isospin dynamics and Intermediate Mass Fragments emission time scales: a probe for the symmetry energy in asymmetric nuclear matter

Simone Santoro, Maiolino, Porto, Rizzo, Cardella, Pirrone, Russotto, Lanzalone, E. La Guidara, Lombardo, Amorini, Grassi, Minniti, Santoro, Han, Colonna, Papa, Auditore, Piasecki, Giuseppe PolitiGianì, Baran, Gianì, Berceanu, Trifirò, Trimarchi, Verde, De Filippo, Grzeszczuk, Vigilante, Pop, Pagano, Wilczyński, Geraci, Piasecki, Guazzoni, Zetta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We show new data from the $^{64}$Ni+$^{124}$Sn and $^{58}$Ni+$^{112}$Snreactions studied in direct kinematics with the CHIMERA detector at INFN-LNSand compared with the reverse kinematics reactions at the same incident beamenergy (35 A MeV). Analyzing the data with the method of relative velocitycorrelations, fragments coming from statistical decay of an excitedprojectile-like (PLF) or target-like (TLF) fragments are discriminated from theones coming from dynamical emission in the early stages of the reaction. Bycomparing data of the reverse kinematics experiment with a stochastic meanfield (SMF) + GEMINI calculations our results show that observables from neckfragmentation mechanism add valuable constraints on the density dependence ofsymmetry energy. An indication is found for a moderately stiff symmetry energypotential term of EOS.
Original languageEnglish
Title of host publication11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012
Number of pages9
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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