Physics Letters B (Feb 2021)
Insight into the reaction dynamics of proton drip-line nuclear system 17F+58Ni at near-barrier energies
- L. Yang,
- C.J. Lin,
- H. Yamaguchi,
- Jin Lei,
- P.W. Wen,
- M. Mazzocco,
- N.R. Ma,
- L.J. Sun,
- D.X. Wang,
- G.X. Zhang,
- K. Abe,
- S.M. Cha,
- K.Y. Chae,
- A. Diaz-Torres,
- J.L. Ferreira,
- S. Hayakawa,
- H.M. Jia,
- D. Kahl,
- A. Kim,
- M.S. Kwag,
- M. La Commara,
- R. Navarro Pérez,
- C. Parascandolo,
- D. Pierroutsakou,
- J. Rangel,
- Y. Sakaguchi,
- C. Signorini,
- E. Strano,
- X.X. Xu,
- F. Yang,
- Y.Y. Yang,
- G.L. Zhang,
- F.P. Zhong,
- J. Lubian
Affiliations
- L. Yang
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- C.J. Lin
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China; Department of Physics, Guangxi Normal University, Guilin 541004, China; Corresponding author at: China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China.
- H. Yamaguchi
- Center for Nuclear Study, University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- Jin Lei
- Institute of Nuclear and Particle Physics, and Department of Physics and Astronomy, Ohio University, Athens, OH 45701, USA
- P.W. Wen
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- M. Mazzocco
- Dipartimento di Fisica e Astronomia, Universita di Padova, via F. Marzolo 8, I-35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy
- N.R. Ma
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- L.J. Sun
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- D.X. Wang
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- G.X. Zhang
- School of Physics, Beihang University, Beijing 100191, China
- K. Abe
- Center for Nuclear Study, University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- S.M. Cha
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- K.Y. Chae
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- A. Diaz-Torres
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- J.L. Ferreira
- Instituto de Física, Universidade Federal Fluminense, Avenida Litoranea s/n, Gragoatá, Niterói, Rio de Janeiro 24210-340, Brazil
- S. Hayakawa
- Center for Nuclear Study, University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- H.M. Jia
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- D. Kahl
- Center for Nuclear Study, University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- A. Kim
- Department of Science Education, Ewha Womans University, Seoul 03760, Republic of Korea
- M.S. Kwag
- Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- M. La Commara
- Department of Pharmacy, University Federico II, via D. Montesano 49, I-80131 Napoli, Italy
- R. Navarro Pérez
- Department of Physics, San Diego State University, 5500 Campanile Drive, San Diego, CA 02182-1233, USA
- C. Parascandolo
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, Via Cintia, I-80126 Napoli, Italy
- D. Pierroutsakou
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, Via Cintia, I-80126 Napoli, Italy
- J. Rangel
- Instituto de Física, Universidade Federal Fluminense, Avenida Litoranea s/n, Gragoatá, Niterói, Rio de Janeiro 24210-340, Brazil
- Y. Sakaguchi
- Center for Nuclear Study, University of Tokyo, RIKEN campus, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- C. Signorini
- Dipartimento di Fisica e Astronomia, Universita di Padova, via F. Marzolo 8, I-35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy
- E. Strano
- Dipartimento di Fisica e Astronomia, Universita di Padova, via F. Marzolo 8, I-35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare-Sezione di Padova, via F. Marzolo 8, I-35131 Padova, Italy
- X.X. Xu
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- F. Yang
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China
- Y.Y. Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- G.L. Zhang
- School of Physics, Beihang University, Beijing 100191, China
- F.P. Zhong
- China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413, China; Department of Physics, Guangxi Normal University, Guilin 541004, China
- J. Lubian
- Instituto de Física, Universidade Federal Fluminense, Avenida Litoranea s/n, Gragoatá, Niterói, Rio de Janeiro 24210-340, Brazil
- Journal volume & issue
-
Vol. 813
p. 136045
Abstract
The mechanism of reactions with weakly-bound proton-rich nuclei at energies near the Coulomb barrier is a long-standing open question owing to the paucity of experimental data. In this study, a complete kinematics measurement was performed for the proton drip-line nucleus 17F interacting with 58Ni at four energies near the Coulomb barrier. Thanks to the powerful performance of the detector array, exhaustive information on the reaction channels, such as the differential cross sections for quasielastic scattering, exclusive and inclusive breakup, as well as for fusion-evaporation protons and alphas, was derived for the first time. The angular distributions of quasielastic scattering and exclusive breakup can be described reasonably well by the continuum-discretized coupled-channels calculations. The inclusive breakup was investigated using the three-body model proposed by Ichimura, Austern, and Vincent, and results indicate the non-elastic breakup is the dominant component. The total fusion cross sections were determined by the fusion-evaporation protons and alphas. Based on the measured exclusive breakup data, the analysis of the classical dynamical simulation code PLATYPUS demonstrates that the incomplete fusion plays a minor role. Moreover, compared with 16O+58Ni, both the reaction and total fusion cross sections of 17F+58Ni exhibit an enhancement in the sub-barrier energy region, which mainly arises from couplings to the continuum states. This work indicates that the information of full reaction channels is crucially important to comprehensively understand the reaction mechanisms of weakly bound nuclear systems.
