학술논문
HALO EFFECTS IN THE LOW-ENERGY SCATTERING OF 15C WITH HEAVY TARGETS.
Document Type
Article
Author
Source
Subject
*CARBON isotopes
*NEUTRONS
*RAINBOWS
*
*
Language
ISSN
0587-4254
Abstract
The neutron-rich carbon isotope 15C was postulated to be a halo nucleus (Sn = 1215 keV, S2n = 9395 keV) according to different high-energy experiments. If so, it would be the only halo nucleus exhibiting a “pure†s-wave structure of the ground state. At low collision energies, the effect of this halo structure should manifest as a strong absorption pattern in the angular distribution of the elastic cross section, with a total suppression of the nuclear rainbow due to the large neutron transfer and breakup probabilities, enhanced by the halo conï¬guration. The IS619 experiment, carried out at the HIE-ISOLDE facility at CERN (Switzerland), is the ï¬rst dynamical study of this nucleus at energies around the Coulomb barrier. It aims to probe the halo structure via the measurement of the elastic cross section on a high-Z 208Pb target. Preliminary results of the elastic cross section are discussed and compared to Optical Model calculations. [ABSTRACT FROM AUTHOR]