Speaker
Description
A study of breakup reactions involving the $^9$C and $^{30}$F weakly bound nuclei is presented. The $^9{\rm C}$ is modelled as $^9{\rm C}\to{}^8{\rm B}+p$, where $^8{\rm B}\to{}^7{\rm Be}+p$, with a proton ground state separation energy of $S_p=-0.137$\,MeV. The $^{30}$F is modelled as $^{30}{\rm F}\to{}^{29}{\rm F}+n$, where $^{29}{\rm F}\to{}^{27}{\rm F}+n+n$, with a two neutrons ground state separation energy of $S_p=-1.443$\,MeV. In order to analyze the role of these weakly bound core nuclei on the breakup observables, instead of taking on more complicated four-body and five-body systems, we limit the study to the role of static effect which is associated with the ground state wave function. To this end, the core-target nuclear potentials are constructed as follows. For the $^9$C nucleus, the $^8$B-target nuclear potential is constructed by first obtaining the density of the halo proton within the $^8{\rm B}+p$ system. Then, this density together with the density of the $^7$Be nucleus are used to obtain the density of the core nucleus $^8$B. This density is then used to construct the $^8$B-target nuclear potential by means of a double folding procedure. For the $^{29}$F-target nuclear potential, the $^{29}$F is treated as $^{29}{\rm F}\to{}^{27}{\rm F}+{}^2n$. The potential parameters are tuned such that the obtained wave function matches the asymptotic behavior of the $^{29}$F three-body wave function. Then, the $^{29}$F-target nuclear potential is constructed using the same approach. In both cases, the three-body breakup observables are obtained by means of the continuum discretized coupled-channels (CDCC) formalism.
