Eur. Phys. J. A (2007) 33: 389-400
https://doi.org/10.1140/epja/i2007-10458-6

Regular Article - Theoretical Physics

Calculations of ⁶He + p elastic-scattering cross-sections using folding approach and high-energy approximation for the optical potential

¹ Joint Institute for Nuclear Research, 141980, Dubna, Russia
² Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784, Sofia, Bulgaria
³ Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006, Madrid, Spain

^* e-mail: gaidarov@inrne.bas.bg

Received: 13 April 2007
Accepted: 21 August 2007
Published online: 12 September 2007

Abstract

Calculations of microscopic optical potentials (OPs) (their real and imaginary parts) are performed to analyze the ⁶ He + p elastic-scattering data at a few tens of MeV/nucleon (MeV/N). The OPs and the cross-sections are calculated using three model densities of ⁶He . Effects of the regularization of the NN forces and their dependence on nuclear density are investigated. Also, the role of the spin-orbit terms and of the non-linearity in the calculations of the OPs, as well as effects of their renormalization are studied. The sensitivity of the cross-sections to the nuclear densities was tested and one of them that gives a better agreement with the data was chosen.