Abstract
The recent high-precision measurements of -particle-induced-reaction data below the Coulomb barrier () make possible the understanding of limits and possible improvement of a previous optical model potential (OMP) for particles on nuclei within the mass number range [M. Avrigeanu et al., Phys. Rev. C 82, 014606 (2010)]. An updated version of this potential is given in the present work concerning mainly an increased surface imaginary-potential depth well below for . Moreover, underestimation of reaction cross sections for well-deformed nuclei is removed by using larger radius for the surface imaginary part of this spherical OMP. Improved input parameters based on recent independent data, particularly -ray strength functions, but no empirical rescaling factor of the and/or neutron widths have been involved within statistical model calculation of the corresponding reaction cross sections.
4 More- Received 20 April 2014
- Revised 2 October 2014
DOI:https://doi.org/10.1103/PhysRevC.90.044612
©2014 American Physical Society