Energy dependence of the 8Be + 13C interaction

Elastic and inelastic scattering of 14N ions by 11B at 88 MeV versus that of 15N + 11B at 84 MeV

“…The deformation parameters of 11 B and 14 N found in previous scattering analyses involving these nuclei [2,4,5] were found to describe the inelastic scattering in the present work. The 11 B + 14 N scattering potential was found to be quite similar at the three highest 14 N energies studied here and should be considered to be well determined for this system.…”

Study of 9Be+12C elastic scattering at energies near the Coulomb barrier

“…The uncertainties are determined by a χ 2 analysis. One can notice that N r increases in the vicinity of the Coulomb barrier energy (E CM ≈ 9 MeV [9,16]). The values of N i are approximately constant for all energies, and they are in agreement with the results obtained in Ref.…”

Influence of halo single-neutron transfer on near barrier $$^{15}$$C + $$^{12}$$C total fusion

“…In a recent article deSouza et al [1] make a systematic comparison of measurements [2,3] of the fusion excitation functions for the 12−15 C + 12 C systems at energies just above the respective Coulomb barriers. They find that the average fusion cross section, σ F , shows a more rapid increase with increasing projectile neutron number than can be accounted for by static barrier penetration models using potentials based on calculated nuclear matter densities.…”

“…However, time-dependent Hartree-Fock model calculations also failed to reproduce the behaviour of the fusion cross sections. In this brief note we wish to point out that in the 15 C + 12 C system coupling to the ( 15 C, 14 C) single-neutron transfer reaction has a significant influence on the fusion cross section excitation function and that while this coupling does not explain the observed dependence of σ F on neutron excess-it significantly reduces the fusion cross section over the measured range of incident energiesa e-mail: nicholas.keeley@ncbj.gov.pl (corresponding author) its influence is sufficiently important that it must be included in any attempt at understanding the fusion of this neutronrich system. By contrast, the single-nucleon transfer reactions have a negligible effect on the fusion cross sections for the other systems.…”

“…The most important structural particularity of 15 C compared to the other carbon isotopes considered by deSouza et al [1], 12 C, 13 C and 14 C, is the halo nature of its 1/2 + ground state. Not only is this state weakly bound, S n = 1.2 MeV, but its wave function is an almost pure 2s 1/2 neutron coupled to the 14 C core in its 0 + ground state.…”