One-neutron stripping process in the 209Bi(6Li, 5Li)210Bi reaction reaction

• Published in: Nuclear science and techniques Vol. 35; no. 6
• Main Authors: Zhang, Gao-Long, Jiao, Zhen-Wei, Zhang, Guang-Xin, Cardozo, E. N., Paes, B., Hu, Shi-Peng, Qian, Jian-Qiang, Mengoni, Daniele, Qu, Wei-Wei, Li, Cong-Bo, Zheng, Yun, Zhang, Huan-Qiao, Sun, Hui-Bin, Wang, Nan, Zhang, Chun-Lei, Valiente-Dobón, J. J., Testov, D., Mazzocco, M., Gozzelino, A., Parascandolo, C., Pierroutsakou, D., La Commara, M., Goasduff, A., Bazzacco, D., Napoli, D. R., Galtarossa, F., Recchia, F., Illana, A., Bakes, S., Zanon, I., Aydin, S., de Angelis, G., Siciliano, M., Menegazzo, R., Lenzi, S. M., Akkoyun, S., Canto, L. F., Lubian, J.
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.06.2024
• Subjects: Beam Physics; Nuclear Energy; Particle Acceleration and Detection; Particle and Nuclear Physics; Physics; Physics and Astronomy; Weakly bound nuclei; Cross section; Transfer reaction
• ISSN: 1001-8042; 2210-3147
• DOI: 10.1007/s41365-024-01462-w

One-neutron stripping process between 6 Li and 209 Bi was studied at 28, 30, and 34 MeV using the in-beam γ -ray spectroscopy method. The γ – γ coincident analysis clearly identified two γ -rays feeding the ground and long-lived isomeric states, which were employed to determine the cross section. The one-neutron stripping cross sections were similar to the cross sections of complete fusion in the 6 Li+ 209 Bi system, but the one-neutron stripping cross sections decreased more gradually at the sub-barrier region. A coupled-reaction-channel calculation was performed to study the detailed reaction mechanism of the one-neutron stripping process in 6 Li. The calculations indicated that the first excited state of 5 Li is critical in the actual one-neutron transfer mechanism, and the valence proton of 209 Bi can be excited to the low-lying excited state in ( 6 Li , 5 Li ) reaction, unlike in the (d,p) reaction.