Physics Letters B (Dec 2020)
Scattering of the halo nucleus 11Be from a lead target at 3.5 times the Coulomb barrier energy
- F.F. Duan,
- Y.Y. Yang,
- K. Wang,
- A.M. Moro,
- V. Guimarães,
- D.Y. Pang,
- J.S. Wang,
- Z.Y. Sun,
- Jin Lei,
- A. Di Pietro,
- X. Liu,
- G. Yang,
- J.B. Ma,
- P. Ma,
- S.W. Xu,
- Z. Bai,
- X.X. Sun,
- Q. Hu,
- J.L. Lou,
- X.X. Xu,
- H.X. Li,
- S.Y. Jin,
- H.J. Ong,
- Q. Liu,
- J.S. Yao,
- H.K. Qi,
- C.J. Lin,
- H.M. Jia,
- N.R. Ma,
- L.J. Sun,
- D.X. Wang,
- Y.H. Zhang,
- X.H. Zhou,
- Z.G. Hu,
- H.S. Xu
Affiliations
- F.F. Duan
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Y.Y. Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China; Corresponding authors.
- K. Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- A.M. Moro
- Departamento de FAMN, Universidad de Sevilla, Apartado 1065, 41080 Sevilla, Spain; Instituto Interuniversitario Carlos I de Física Teórica y Computacional (iC1), Apdo. 1065, E-41080 Sevilla, Spain; Corresponding authors.
- V. Guimarães
- Instituto de Física, Universidade de São Paulo, Rua do Matão, 1371, São Paulo 05508-090, SP, Brazil
- D.Y. Pang
- School of Physics, Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beihang University, Beijing, 100191, China
- J.S. Wang
- School of Science, Huzhou University, Huzhou 313000, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- Z.Y. Sun
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- Jin Lei
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- A. Di Pietro
- INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, I-95123 Catania, Italy
- X. Liu
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
- G. Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- J.B. Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- P. Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- S.W. Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z. Bai
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- X.X. Sun
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Q. Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- J.L. Lou
- School of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- X.X. Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- H.X. Li
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- S.Y. Jin
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- H.J. Ong
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Q. Liu
- School of Physics and Materials Science, Anhui University, Hefei 230601, China
- J.S. Yao
- School of Science, Huzhou University, Huzhou 313000, China
- H.K. Qi
- School of Science, Huzhou University, Huzhou 313000, China
- C.J. Lin
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- H.M. Jia
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- N.R. Ma
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- L.J. Sun
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- D.X. Wang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- Y.H. Zhang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- X.H. Zhou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- Z.G. Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- H.S. Xu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100080, China
- Journal volume & issue
-
Vol. 811
p. 135942
Abstract
Angular distributions of quasielastic scattering and breakup of the neutron-rich halo nucleus 11Be on a 208Pb target at an incident energy of 140 MeV (about 3.5 times the Coulomb barrier) were measured at HIRFL-RIBLL. A strong suppression of the Coulomb nuclear interference peak is observed in the measured quasielastic scattering angular distribution. The result demonstrates for the first time the persistence of the strong breakup coupling effect reported so far for reaction systems involving neutron-halo nuclei at this relatively high incident energy. The measured quasielastic scattering cross sections are satisfactorily reproduced by continuum discretized coupled channel (CDCC) calculations as well as by the XCDCC calculations where the deformation of the 10Be core is taken into account. The angular and energy distributions of the 10Be fragments could also be well reproduced considering elastic breakup (CDCC and XCDCC) plus nonelastic breakup contributions, with the latter evaluated with the model by Ichimura, Austern and Vincent [1]. The comparison of the 10Be energy distributions with simple kinematical estimates evidence the presence of a significant post-acceleration effect which, in the (X)CDCC frameworks, is accounted for by continuum-continuum couplings.
