Investigation of low-lying resonances in breakup of halo nuclei within the time-dependent approach
Valiolda D. Janseitov D. Melezhik V.
February 2022Springer Science and Business Media Deutschland GmbH
European Physical Journal A
2022#58Issue 2
We investigate the Coulomb breakup of 11Be halo nuclei on a heavy target (208Pb) from intermediate (70 MeV/nucleon) to low energies (5 MeV/nucleon) within the non-perturbative semiclassical and quantum-quasiclassical time-dependent approaches. The convergence of the computational scheme is demonstrated in this energy range including n + 10Be low-lying resonances in different partial and spin states. We have found a considerable contribution of the 5 / 2 + resonance (Er = 1.23 MeV) to the breakup cross section at 30 MeV/nucleon and lower, while at higher energies, the resonant states 3 / 2 - and 3 / 2 + (with Er = 2.78 and 3.3 MeV) make most visible contributions. The obtained results are in good agreement with experimental data available at 69 and 72 MeV/nucleon. Comparison with the existing theoretical calculations of other authors for 20 and 30 MeV/nucleon is also made. The developed computational scheme opens new possibilities in the investigation of the Coulomb, as well as nuclear, breakup of other halo nuclei on heavy and light targets.
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Al-Farabi Kazakh National University, al-Farabi St. 74, Almaty, Kazakhstan
Institute of Nuclear Physics, Ibragimova St. 1, Almaty, Kazakhstan
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Joliot-Curie St. 6, Dubna, Russian Federation
Dubna State University, Universitetskaya St. 19, Dubna, Russian Federation
Al-Farabi Kazakh National University
Institute of Nuclear Physics
Bogoliubov Laboratory of Theoretical Physics
Dubna State University
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