Highly deformed40Caconfigurations in28Si+

Abstract

The possible occurrence of highly deformed configurations in the 40 Ca dinuclear system formed in the 28 Siϩ 12 C reaction is investigated by analyzing the spectra of emitted light charged particles. Both inclusive and exclusive measurements of the heavy fragments (Aу10) and their associated light charged particles ͑protons and ␣ particles͒ have been made at the IReS Strasbourg VIVITRON Tandem facility at bombarding energies of E lab ( 28 Si)ϭ112 MeV and 180 MeV by using the ICARE charged particle multidetector array. The energy spectra, velocity distributions, and both in-plane and out-of-plane angular correlations of light charged particles are compared to statistical-model calculations using a consistent set of parameters with spindependent level densities. The analysis suggests the onset of large nuclear deformation in 40 Ca at high spin.

Scattering of $^{15}$N Ions by $^{10, 11}$B Nuclei at the Energy of 43 MeV

“…The experiment was performed with the U-200P cyclotron at the Heavy Ion Laboratory, University of Warsaw. A beam of 15 N accelerated up to the energy of 43 MeV was focused on the target located in the center of the scattering chamber, which is the basis of the multi-detector system ICARE [5,6]. The target thicknesses of 10 B and 11 B were 0.15 mg/cm 2 and 0.25 mg/cm 2 , respectively.…”

Deformation in28Si*produced via the16O+Kundu1, Bhattacharya2, Bhattacharya3 et al. 2013Phys. Rev. CSelf Cite

“…Following the empirical procedure given in Refs. [10,13], it can be shown that the above change in the deformability parameters is indicative of substantial enhancement of the deformation of the excited composite over the corresponding ground state (RLDM) deformation. Before we look further into the origin of such deformation, it may be worthwhile to see if there is any other alternative explanation of the observed deviation of the experimental spectra from the respective standard statistical model prediction.…”

“…Detailed studies of the deformation of 40 Ca * [9,10] and 32 S * [11] were done recently with the help of light charged particle (LCP) spectroscopy to extract "anomalous" deformation in these cases confirming the presence of DIO mechanism. For these systems, orbiting ( 40 Ca * [6,7], 32 S * [1-3]) had already been conjectured from the fragment emission studies.…”

Modelling incomplete fusion dynamics of complex nuclei at Coulomb energies

“…Experimental results [64] for the angular distribution for the transfer reaction of 4 2 He ( 20 10 Ne + 208 82 Pb → 212 84 Po + 16 8 O) for projectile incident energies of 105 MeV and 115 MeV, collected using the ICARE charged particle multidetector array [65][66][67], are shown in Fig. 6(a).…”