Abstract
Abstract Cross sections for the elastic scattering of 6He radioactive nuclear beam on proton targets have been measured at 38.3 MeV/nucleon. With a view to test the ability of general optical potentials to reproduce the data for scattering of unstable nuclei, the present results, as well as other existing data for 6,8He, have been analyzed within the framework of the microscopic Jeukenne–Lejeune–Mahaux nucleon–nucleus potential. The angular distributions were found to be best reproduced by reducing the real part of the optical potential. This renormalization can be seen as a consequence of the complex polarization potential produced by the coupling to the continuum due to the weakly bound nature of the unstable nuclei. This effect can be simulated in a phenomenological analysis by a surface potential.
Highlights
Cross sections for the elastic scattering of 6He radioactive nuclear beam on proton targets have been measured at 38.3 MeV/nucleon
In pioneering work describing the microscopic folding analysis of nucleus–nucleus elastic scattering [3], Satchler and Love proved that it was necessary to reduce the real part of the optical potential to reproduce the data involving light, weakly bound nuclei, such as 6Li and 9Be [3]
Nucleus–nucleon elastic scattering can be described using the complex microscopic JLM potential [6] which only depends on the scattering energy and on the neutron and proton densities of the nucleus
Summary
Cross sections for the elastic scattering of 6He radioactive nuclear beam on proton targets have been measured at 38.3 MeV/nucleon. In pioneering work describing the microscopic folding analysis of nucleus–nucleus elastic scattering [3], Satchler and Love proved that it was necessary to reduce the real part of the optical potential to reproduce the data involving light, weakly bound nuclei, such as 6Li and 9Be [3].
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