Nuclear-matter density distribution in the neutron-rich nuclei 12,14Be from proton elastic scattering in inverse kinematics

Active targets for the study of nuclei far from stability

“…Source: From [6]. results for 12 Be of a recent publication [25]. The experimental cross sections are divided by an exponential function, in order to enhance the visibility, as shown in Fig.…”

“…One consists in using theoretical microscopic calculations as input for Glauber multiple scattering formalism. The other method minimizes different parametrizations for the matter distributions, such as single Gaussians, or sum of Gaussians, to achieve the best fit to the data, see for example [25]. The resulting error for the root mean square radius is typically of the order of some percent, an extremely valuable quantitative information to characterize radioactive nuclei.…”

“…(Color online) Nuclear-matter density distribution deduced with the Sum Of Gaussian parametrization[25]. The error band in the density distribution on the right hand figure is determined by a χ 2 analysis of the contribution of the different Gaussian components.…”

Nuclear-matter radius studies fromNi58(α,α)experiments at the GSI Experimental Storage Ring with the EXL facility

“…For instance, nucleon and light-ion scattering experiments have been extensively used in normal-kinematics experiments to measure the matter radii of * zamora@nscl.msu.edu a wide range of nuclei [3,4]. This technique also led to the discovery of extended neutron distributions (or neutron skin) and halos in exotic nuclei [5][6][7][8]. One interesting feature in these nuclei is that their charge and matter distributions can differ significantly, which is an effect arising from the existence of neutron skins.…”

“…Therefore, novel techniques have been developed using radioactive beams in inverse-kinematics experiments. For example, the use of a first generation of active targets permitted to deduce successfully the nuclear-matter distribution of light exotic-nuclei [5][6][7][8]. Nevertheless, such experiments were limited due to the angular resolution and detection sensitivity for the recoiling particles at very forward angles in center-of-mass frame.…”