TY - JOUR
T1 - Coupled-channels analyses for 9,11Li + 208Pb fusion reactions with multi-neutron transfer couplings
AU - Choi, Ki Seok
AU - Cheoun, Myung Ki
AU - So, W. Y.
AU - Hagino, K.
AU - Kim, K. S.
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (Grant Nos. NRF-2016R1C1B1012874 , NRF-2014R1A1A2A16052632 , NRF-2015R1D1A3A01017378 , NRF-2015R1A2A2A01004727 , NRF-2015K2A9A1A06046598 , and NRF-2017R1E1A1A01074023 ). K.H. thanks Soongsil University and Kangwon National University at Dogye for their hospitality and for financial supports for his visit to those universities.
Funding Information:
This work was supported by the National Research Foundation of Korea (Grant Nos. NRF-2016R1C1B1012874, NRF-2014R1A1A2A16052632, NRF-2015R1D1A3A01017378, NRF-2015R1A2A2A01004727, NRF-2015K2A9A1A06046598, and NRF-2017R1E1A1A01074023). K.H. thanks Soongsil University and Kangwon National University at Dogye for their hospitality and for financial supports for his visit to those universities.
Publisher Copyright:
© 2018 The Authors
PY - 2018/5/10
Y1 - 2018/5/10
N2 - We discuss the role of two-neutron transfer processes in the fusion reaction of the 9,11Li + 208Pb systems. We first analyze the 9Li + 208Pb reaction by taking into account the coupling to the 7Li + 210Pb channel. To this end, we assume that two neutrons are directly transferred to a single effective channel in 210Pb and solve the coupled-channels equations with the two channels. By adjusting the coupling strength and the effective Q-value, we successfully reproduce the experimental fusion cross sections for this system. We then analyze the 11Li + 208Pb reaction in a similar manner, that is, by taking into account three effective channels with 11Li + 208Pb, 9Li + 210Pb, and 7Li + 212Pb partitions. In order to take into account the halo structure of the 11Li nucleus, we construct the potential between 11Li and 208Pb with a double folding procedure, while we employ a Woods–Saxon type potential with the global Akyüz–Winther parameters for the other channels. Our calculation indicates that the multiple two-neutron transfer process plays a crucial role in the 11Li + 208Pb fusion reaction at energies around the Coulomb barrier.
AB - We discuss the role of two-neutron transfer processes in the fusion reaction of the 9,11Li + 208Pb systems. We first analyze the 9Li + 208Pb reaction by taking into account the coupling to the 7Li + 210Pb channel. To this end, we assume that two neutrons are directly transferred to a single effective channel in 210Pb and solve the coupled-channels equations with the two channels. By adjusting the coupling strength and the effective Q-value, we successfully reproduce the experimental fusion cross sections for this system. We then analyze the 11Li + 208Pb reaction in a similar manner, that is, by taking into account three effective channels with 11Li + 208Pb, 9Li + 210Pb, and 7Li + 212Pb partitions. In order to take into account the halo structure of the 11Li nucleus, we construct the potential between 11Li and 208Pb with a double folding procedure, while we employ a Woods–Saxon type potential with the global Akyüz–Winther parameters for the other channels. Our calculation indicates that the multiple two-neutron transfer process plays a crucial role in the 11Li + 208Pb fusion reaction at energies around the Coulomb barrier.
KW - Coupled-channels method
KW - Total fusion cross section
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U2 - 10.1016/j.physletb.2018.03.049
DO - 10.1016/j.physletb.2018.03.049
M3 - Article
AN - SCOPUS:85044104829
VL - 780
SP - 455
EP - 460
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -