Proton halo effects in the 8B+64Zn collision around the Coulomb barrier
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Abstract
The 8B+64Zn reaction at 38.5 MeV has been studied at HIE-ISOLDE CERN to investigate proton halo effect on the reaction dynamics. For the first time it was used the only existing post-accelerated 8B beam. The measured elastic scattering angular distribution showed a small suppression of the Coulomb-nuclear interference peak, opposite to what observed for the one-neutron halo nucleus 11Be on the same target where a large suppression was observed instead. Inclusive angular and energy distributions of breakup fragments were also measured showing that, both, elastic and non-elastic breakup contribute. The presence of the additional Coulomb interactions halo-core and halo-target in 8B makes the reaction dynamics in this proton-halo nucleus different than the neutron-halo case.
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Di Pietro, A., Spartá, R., Figuera, P., Tengblad, O., Moro, A., Lei, J., Fernandez Garcia, J., Acosta, L., Jonson, B., Borge, M., Cederkäll, J., Davinson, T., Ovejas, J., Fraile, L., Galaviz, D., Halkjaer Jensen, J., La Cognata, M., Martel, I., Perea, A., … Vignales, S. (2023). Proton halo effects in the 8B+64Zn collision around the Coulomb barrier. In Journal of Physics: Conference Series (Vol. 2586, Issue 1, p. 012079). IOP Publishing. https://doi.org/10.1088/1742-6596/2586/1/012079
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