Speaker
Description
I will report on a quantitative study of the sub-Coulomb fusion of astrophysically important heavy-ion collisions, such as $^{16}$O + $^{16}$O and $^{12}$C + $^{12}$C. It is carried out using wave-packet dynamics. The low-energy collision is described in the rotating center-of-mass frame within a nuclear molecular picture [1]. A collective Hamiltonian drives the time propagation of the wave-packet through the collective potential-energy landscape that is calculated with a realistic two-center shell model [2-4]. Among other preliminary results, the theoretical sub-Coulomb fusion resonances for $^{12}$C + $^{12}$C seem to correspond well with observations. The method appears to be useful for expanding the cross-section predictions towards stellar energies.
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- A. Diaz-Torres, Phys. Rev. Lett. 101 (2008) 122501.
