Nuclear deformation and subbarrier fusion cross sections
Abstract
We present calculations of subbarrier fusion cross sections for spherical projectiles and deformed targets. For a given sphericalprojectile and deformedtarget combination we calculate exactly the sum of the Coulomb and nuclear potentials. There are no free parameters in the calculations, except for a simple energy shift of the calculated cross sections. The shapes of the target nuclei are taken from a global calculation of nuclear groundstate shapes that determined the ɛ_{2}, ɛ_{3}, ɛ_{4}, and ɛ_{6} shape coordinates from a minimization of the nuclear potential energy. The cross sections are obtained by integrating the transmission coefficients over angle, which are obtained by calculating the barrier penetrability at each angular momentum by use of the WKB approximation. Some of the results, where highprecision experimental data are available, are analyzed in terms of "fusionbarrier distributions".
 Publication:

Nuclear Physics A
 Pub Date:
 February 1996
 DOI:
 10.1016/03759474(96)001558
 Bibcode:
 1996NuPhA.605..334I