Seminarium Fizyki Jądra Atomowego

The CHIFAR experiment [1] was carried out at LNS by coupling the CHIMERA multi-detector [2,3] with ten triple telescopes of the novel FARCOS correlator array [4]. The ten telescopes, placed 40 cm far from the target, were arranged in a ring-like structure covering the 15-30° polar angle interval in lab ref. sys. and an azimuthal interval of ≈ 3/2π. Reactions among neutron rich and poor 124Sn, 124Xe, 112Sn beams at 20 AMeV and 64Ni, 64Zn, 58Ni targets were measured. The aim of the experiment is to extend to lower energy the previous studies performed at 35 AMeV [5] on the Intermediate Mass Fragments (IMFs) emission mechanisms and isotopic composition, and on the dependence of the dynamical effects on the isospin content of the entrance channel. In this lecture after a brief introduction to the physic case, the preliminary results of CHIMERA and FARCOS will be presented. Moreover will be also presented the NArCoS (Neutron Array for Correlation Studies) project, a new detector for neutron and light charged particles featuring high angular and energy resolution.

[1] E.V. Pagano et al., Proposal of CHIFAR experiment, approved by the 2017 LNS-PAC.
[2] E. De Filippo and A. Pagano, Eur. Phys. J A50, 32 (2014) and refs. therein;
[3] A. Pagano, Nucl. Phys. News 22, 28 (2012) and refs. therein.
[4] E.V. Pagano et al., EPJ Web Conf. 117, 10008 (2016).
[5] P. Russotto et al., Eur. Phys. J A56, 12 (2020) and refs. therein.