Signature of shallow potentials in deep sub-barrier fusion reactions
Signature of shallow potentials in deep sub-barrier fusion reactions
We extend a recent study that explained the steep falloff in the fusion cross section at energies far below the Coulomb barrier for the symmetric dinuclear system $^{64}\mathrm{Ni}+^{64}\mathrm{Ni}$ to another symmetric system, $^{58}\mathrm{Ni}+^{58}\mathrm{Ni}$, and the asymmetric system $^{64}\mathrm{Ni}+^{100}\mathrm{Mo}$. In this scheme, the very sensitive dependence of the internal part of …