Halo effects on fusion cross section in 4,6He+64Zn collision around and below the coulomb barrier

The structure of the halo nuclei is expected to influence the fusion mechanism at energies around and below the Coulomb barrier. Here new data of 4He+64Zn at sub-barrier energies are presented which cover the same energy region of previous measurements of 6He+64Zn. The fusion cross section was measu...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 282; no. 1; p. 012014
Main Authors Fisichella, M, Scuderi, V, Pietro, A Di, Figuera, P, Lattuada, M, Marchetta, C, Milin, M, Musumarra, A, Pellegriti, M G, Skukan, N, Strano, E, Torresi, D, Zadro, M
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2011
Subjects
Beta decay
Cross-sections
Electron capture
Emission
Physics
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Summary:The structure of the halo nuclei is expected to influence the fusion mechanism at energies around and below the Coulomb barrier. Here new data of 4He+64Zn at sub-barrier energies are presented which cover the same energy region of previous measurements of 6He+64Zn. The fusion cross section was measured by using an activation technique where the radioactive evaporation residues produced in the reaction were identified by the X-ray emission which follows their electron capture decay. By comparing the two system, we observe an enhancement on the fusion cross section in the reaction induced by 6He, at energy below the Coulomb barrier. It is shown that this enhancement seems to be due to static properties of halo 2n 6He nucleus.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/282/1/012014