Scattering Of Exotic Nuclei A Microscopic Approach
Pierre Descouvemont
Université Libre de Bruxelles, Brussels, Belgium
DATA: 13/04/2016 - HORÁRIO: 16h
LOCAL: SALA DE SEMINÁRIOS DFN (LINAC)
Abstract:
Exotic nuclei are at the limit of stability, and are therefore weakly bound. This property is responsible for an extended structure, known as a "halo". Due to their short lifetime, experimental studies are performed by using radioactive beams. Elastic scattering and breakup reactions represent efficient tools to investigate the structure of exotic nuclei. The main issue for theory is to determine their spectroscopic properties from the measured cross sections. The Continuum Discretized Coupled Channel (CDCC) method (at energies around the Coulomb barrier) and the eikonal method (at high energies) are widely used in reaction theories. Both approaches rely on projectile wave functions as accurate as possible. In this talk I present recent applications of the CDCC and eikonal methods with various types of projectile wave functions. In particular, recent works aim at using a microscopic description of the projectile. This approach represents a significant improvement in scattering theory, since it does not involve any parameter fitting. It only relies on nucleon-target optical potentials, which are well known for many nuclei and over a broad range of energies.
