Comparison of electromagnetic and nuclear dissociation of <SUP>17</SUP>Ne

Wamers, F, Marganiec, J, Aksouh, F, Aksyutina, Yu, Alvarez-Pol, H, Aumann, T, Beceiro-Novo, S, Bertulani, CA, Boretzky, K, Borge, MJG
et al (show 50 more authors) (2018) Comparison of electromagnetic and nuclear dissociation of <SUP>17</SUP>Ne. PHYSICAL REVIEW C, 97 (3). 034612-.

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The Borromean drip-line nucleus Ne17 has been suggested to possess a two-proton halo structure in its ground state. In the astrophysical rp-process, where the two-proton capture reaction O15(2p,γ)Ne17 plays an important role, the calculated reaction rate differs by several orders of magnitude between different theoretical approaches. To add to the understanding of the Ne17 structure we have studied nuclear and electromagnetic dissociation. A 500 MeV/u Ne17 beam was directed toward lead, carbon, and polyethylene targets. Oxygen isotopes in the final state were measured in coincidence with one or two protons. Different reaction branches in the dissociation of Ne17 were disentangled. The relative populations of s and d states in F16 were determined for light and heavy targets. The differential cross section for electromagnetic dissociation (EMD) shows a continuous internal energy spectrum in the three-body system O15+2p. The Ne17 EMD data were compared to current theoretical models. None of them, however, yields satisfactory agreement with the experimental data presented here. These new data may facilitate future development of adequate models for description of the fragmentation process.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 05 Feb 2020 08:16
Last Modified: 20 Jun 2024 19:05
DOI: 10.1103/PhysRevC.97.034612
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