Physics Letters B (Dec 2024)
Single-proton removal reaction in the IQMD+GEMINI model benchmarked by elemental fragmentation cross sections of 29−33Si on carbon at ∼230 MeV/nucleon
- Guang-Shuai Li,
- Bao-Hua Sun,
- Jun Su,
- Isao Tanihata,
- Satoru Terashima,
- Jian-Wei Zhao,
- Er-Xi Xiao,
- Ji-Chao Zhang,
- Liu-Chun He,
- Ge Guo,
- Wei-Ping Lin,
- Wen-Jian Lin,
- Chuan-Ye Liu,
- Chen-Gui Lu,
- Bo Mei,
- Dan-Yang Pang,
- Ye-Lei Sun,
- Zhi-Yu Sun,
- Meng Wang,
- Feng Wang,
- Jing Wang,
- Shi-Tao Wang,
- Xiu-Lin Wei,
- Xiao-Dong Xu,
- Jun-Yao Xu,
- Li-Hua Zhu,
- Yong Zheng,
- Mei-Xue Zhang,
- Xue-Heng Zhang
Affiliations
- Guang-Shuai Li
- School of Physics, Beihang University, Beijing 100191, China
- Bao-Hua Sun
- School of Physics, Beihang University, Beijing 100191, China; Corresponding authors.
- Jun Su
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China; Corresponding authors.
- Isao Tanihata
- School of Physics, Beihang University, Beijing 100191, China; RCNP, Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Satoru Terashima
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Physics, Beihang University, Beijing 100191, China
- Jian-Wei Zhao
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China; GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291, Darmstadt, Germany; School of Physics, Beihang University, Beijing 100191, China
- Er-Xi Xiao
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
- Ji-Chao Zhang
- School of Physics, Beihang University, Beijing 100191, China
- Liu-Chun He
- School of Physics, Beihang University, Beijing 100191, China
- Ge Guo
- School of Physics, Beihang University, Beijing 100191, China
- Wei-Ping Lin
- Key Laboratory of Radiation Physics and Technology of the Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
- Wen-Jian Lin
- School of Physics, Beihang University, Beijing 100191, China
- Chuan-Ye Liu
- School of Physics, Beihang University, Beijing 100191, China
- Chen-Gui Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Bo Mei
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Dan-Yang Pang
- School of Physics, Beihang University, Beijing 100191, China
- Ye-Lei Sun
- School of Physics, Beihang University, Beijing 100191, China
- Zhi-Yu Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Meng Wang
- School of Physics, Beihang University, Beijing 100191, China
- Feng Wang
- School of Physics, Beihang University, Beijing 100191, China
- Jing Wang
- School of Physics, Beihang University, Beijing 100191, China
- Shi-Tao Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Xiu-Lin Wei
- School of Physics, Beihang University, Beijing 100191, China
- Xiao-Dong Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Physics, Beihang University, Beijing 100191, China
- Jun-Yao Xu
- School of Physics, Beihang University, Beijing 100191, China
- Li-Hua Zhu
- School of Physics, Beihang University, Beijing 100191, China
- Yong Zheng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Mei-Xue Zhang
- School of Physics, Beihang University, Beijing 100191, China
- Xue-Heng Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Journal volume & issue
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Vol. 859
p. 139143
Abstract
We report on the first measurement of the elemental fragmentation cross sections (EFCSs) of Si29−33 on a carbon target at ∼230 MeV/nucleon. The experimental data covering charge changes of ΔZ = 1-4 are reproduced well by the isospin-dependent quantum molecular dynamics (IQMD) coupled with the evaporation GEMINI (IQMD+GEMINI) model. We further explore the mechanisms underlying the single-proton removal reaction in this model framework. We conclude that the cross sections from direct proton knockout exhibit an overall weak dependence on the mass number of Si projectiles. The proton evaporation induced after the projectile excitation significantly affects the cross sections for neutron-deficient Si isotopes, while neutron evaporation plays a crucial role in the reactions of neutron-rich Si isotopes. It is presented that the relative magnitude of one-proton and one-neutron separation energies is an essential factor that influences evaporation processes. Therefore, proton evaporation should be incorporated into the reaction model in addition to the direct proton knockout in analyses of Gade-Tostevin systematic for single-proton removal reactions.
