Fusion reactions in the Be9 + Au197 system above the Coulomb barrier

G. S. Li, J. G. Wang, J. Lubian, H. O. Soler, Y. D. Fang, M. L. Liu, N. T. Zhang, X. H. Zhou, Y. H. Zhang, B. S. Gao, Y. H. Qiang, S. Guo, S. C. Wang, K. L. Wang, K. K. Zheng, R. Li, and Y. Zheng
Phys. Rev. C 100, 054601 – Published 5 November 2019

Abstract

The cross sections of complete fusion and incomplete fusion for the Be9+Au197 system, at energies not too much above the Coulomb barrier, were measured for the first time. The online activation followed by an offline γ-ray spectroscopy method was used for the derivation of the cross sections. A slightly higher value of the incomplete fusion to total fusion ratio has been observed, compared to other systems reported in the literature with a Be9 beam. The experimental data were compared with coupled channel calculations without taking into account the coupling of the breakup channel, and experimental data of other reaction systems with weakly bound projectiles. A complete fusion suppression of about 40% was found for the Be9+Au197 system, at energies above the barrier, whereas the total fusion cross sections are in agreement with the calculations.

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  • Received 6 September 2019

DOI:https://doi.org/10.1103/PhysRevC.100.054601

©2019 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

G. S. Li1, J. G. Wang1,*, J. Lubian2,†, H. O. Soler2, Y. D. Fang1, M. L. Liu1, N. T. Zhang1, X. H. Zhou1, Y. H. Zhang1, B. S. Gao1, Y. H. Qiang1, S. Guo1, S. C. Wang1, K. L. Wang1, K. K. Zheng1, R. Li1, and Y. Zheng1

  • 1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 73000, People's Republic of China
  • 2Instituto de Física, Universidade Federal Fluminense, Avenida Litorânea s/n, Gragoatá, Niterói, Rio de Janeiro 24210-340, Brazil

  • *wangjg@impcas.ac.cn
  • lubian@if.uff.br

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Vol. 100, Iss. 5 — November 2019

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