Article
Multiple Mechanisms in Proton-Induced Nucleon Removal at ∼100 MeV/Nucleon
Author/s | Pohl, T.
Sun, Y. L. Obertelli, A. Lee, J. Gómez Ramos, Mario Ogata, K. Yoshida, K. Cai, B. S. Yuan, C. X. Brown, B. A. Zenihiro, J. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2023 |
Deposit Date | 2024-05-21 |
Published in |
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Abstract | We report on the first proton-induced single proton- and neutron-removal reactions from the neutron-deficient O14 nucleus with large Fermi-surface asymmetry Sn-Sp=18.6 MeV at ∼100 MeV/nucleon, a widely used energy regime ... We report on the first proton-induced single proton- and neutron-removal reactions from the neutron-deficient O14 nucleus with large Fermi-surface asymmetry Sn-Sp=18.6 MeV at ∼100 MeV/nucleon, a widely used energy regime for rare-isotope studies. The measured inclusive cross sections and parallel momentum distributions of the N13 and O13 residues are compared to the state-of-the-art reaction models, with nuclear structure inputs from many-body shell-model calculations. Our results provide the first quantitative contributions of multiple reaction mechanisms including the quasifree knockout, inelastic scattering, and nucleon transfer processes. It is shown that the inelastic scattering and nucleon transfer, usually neglected at such energy regime, contribute about 50% and 30% to the loosely bound proton and deeply bound neutron removal, respectively. These multiple reaction mechanisms should be considered in analyses of inclusive one-nucleon removal cross sections measured at intermediate energies for quantitative investigation of single-particle strengths and correlations in atomic nuclei. |
Funding agencies | Deutsche Forschungsgemeinschaft / German Research Foundation (DFG) European Union (UE). H2020 Grant-in-Aid for Scientific Research. Japón Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía Department of Science and Technology of Guangdong. China Research Grants Council (RGC). Hong Kong Institute for Basic Science. Corea National Science Foundation (NSF). United States |
Project ID. | 279384907–SFB 1245
H2020-MSCA-IF-2015-705023 JP21H00125 PID2020–114687 GB-I00 P20_01247 DOC-01006 2021B0301030006 GRF-17303717 JP16H02179 JP18H05404 IBS-R031-D1 PHY-2110365 |
Citation | Pohl, T., Sun, Y.L., Obertelli, A., Lee, J., Gómez Ramos, M., Ogata, K.,...,Zenihiro, J. (2023). Multiple Mechanisms in Proton-Induced Nucleon Removal at ∼100 MeV/Nucleon. Physical Review Letters, 130 (17), 172501. https://doi.org/10.1103/PhysRevLett.130.172501. |
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