Artículo
Breakup of the proton halo nucleus 8B near barrier energies
Autor/es | Yang, Lin
Lin, C. J. Yamaguchi, H. Moro Muñoz, Antonio Matías Ma, N. R. Wang, D. X. Cook, K. J. Mazzocco, M. Zhong, F. P. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2022 |
Fecha de depósito | 2022-12-07 |
Publicado en |
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Resumen | The dynamics of a nuclear open quantum system could be revealed in the correlations between the breakup fragments of halo nuclei. The breakup mechanism of a proton halo nuclear system is of particular interest as the Coulomb ... The dynamics of a nuclear open quantum system could be revealed in the correlations between the breakup fragments of halo nuclei. The breakup mechanism of a proton halo nuclear system is of particular interest as the Coulomb polarization may play an important role, which, however, remains an open question. Here we use a highly efficient silicon detector array and measure the correlations between the breakup fragments of 8B incident on 120Sn at near-barrier energies. The energy and angular correlations can be explained by a fully quantum mechanical method based on the state-of-the-art continuum discretized coupled channel calculations. The results indicate that, compared to the neutron halo nucleus 6He, 8B presents distinctive reaction dynamics: the dominance of the elastic breakup. This breakup occurs mainly via the short-lived continuum states, almost exhausts the 7Be yield, indicating the effect of Coulomb polarization on the proton halo state. The correlation information reveals that the prompt breakup mechanism dominates, occurring predominantly on the outgoing trajectory. We also show that, as a large environment, the continuum of 8B breakup may not significantly influence elastic scattering and complete fusion. |
Agencias financiadoras | National Key R&D Program of China National Natural Science Foundation of China Continuous Basic Scientific Research Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía Korea government (MSIT) |
Identificador del proyecto | 2018YFA0404404
U2167204 12175314 12235020 U18672122 WDJC-2019-13 LC192209000701 LC202309000201 JCKY2020201C002 PID2020-114687GB-I00 P20_01247 2013M7A1A1075764 2018R1A5A1025563 |
Cita | Yang, L., Lin, C.J., Yamaguchi, H., Moro Muñoz, A.M., Ma, N.R., Wang, D.X.,...,Zhong, F.P. (2022). Breakup of the proton halo nucleus 8B near barrier energies. Nature Communications, 13 (1), 7193. https://doi.org/10.1038/s41467-022-34767-8. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Breakup of the proton.pdf | 1.685Mb | [PDF] | Ver/ | |