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| 1 | β-decay Study of Tz=-3/2Proton-rich Nucleus 29S显示文摘The exotic decay of nuclei far from the stability has recently become a hot topic of nuclear structure research.The nuclide 29S is not well investigated in the A=4n+1,Tz=-3/2series of strong+β-delayed proton precursors.The decay schemes of these nuclei are characterized | ZHONG Fupeng XU Xinxing LIN Chengjian WANG Jiansong LI Zhihuan YANG Lei MA Nanru WANG Dongxi WEN Peiwei SUN Lijie WU Hongyi LUO Diwen WU Chenguang JIANG Ying LIU Yang ZANG Hongliang LIANG Pengfei LI Pengjie LI Xiaojing ZHAO Qingqing SHI Guozhu MA Junbing MA Peng YU Gongming Dipikap Patel BAI Zhen YANG Feng JIA Huiming ZHANG Huanqiao WANG Jianguo YANG Yanyun MA Weihu HU Qiang JIN Shuya ZHOU Xiaohong LI Ren HOU Dongsheng LIU Minliang HU Zhengguo MA Xinwen YANG Weiqing GAO Zhihao DUAN Fangfang YU Yuechao WANG Yufeng WANG Peng ZHOU Qingwu CUI Danteng WANG Xiang HU Liyuan PAN Min ZHANG Gaolong WANG Xiaoyu | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 2 | 2-22 Elastic Scattering Studies of Light Proton-rich显示文摘The elastic scattering is an important probe to study the properties of a nucleus. An accurate measurement ofthe elastic scattering differential cross section is very important to determine the optical potential parameters andthe so-called one quarter angle (q1=4). Also, the optical potential parameters of stable nuclei and unstable nucleiare found to be different. 8B, the binding energy of the last proton is only 0.137 MeV, is a well-known protonhalonucleus even there are still some arguments. Many investigations have been done for 8B by measuring thetotal reaction cross sections, breakup cross section and inelastic scattering differential cross section. However, theexperimental data of elastic scattering of 8B and other light proton-rich nuclei on heavy target are few. Therefore, aseries of experiments have been carried out for such nuclei at the Radioactive Ion Beam Line in Lanzhou (RIBLL). | Wang Jiansong Yang Yanyun Wang Qi Pang Danyang Ma Junbing Huang Meirong Ma Peng Jin Shilun Han Jianlong Bai Zhen Ma Weihu Zhou Yuanjie Chen Jie Jin Lei Chen Jiangbo Hu Qiang R. Wada S. Mukherjee | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 3 | 2-23 Fractal Geometrical Properties of Nuclei显示文摘The nuclear system may be a fractal object with the characteristic of self-similarity, the nuclear irregular structureproperties and the self-similarity characteristic are considered to be an intrinsic aspects of nuclear structureproperties. For the description of nuclear geometric properties, nuclear fractal dimension is an irreplaceable variablesimilar to the nuclear radius.In our present description, a more general conception of nuclear fractal clusters (NFCs) is applied, which is similarbut different from the conventional one of the -cluster structure and the core plus valence nucleons structure inhalo nuclei. | Ma Weihu Wang Jiansong Wang Qi Mukherjee Surjit Yang Lei Yang Yanyun Huang Meirong | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 4 | 2-24 Breakup Reaction of 9Li显示文摘The studies of nuclear cluster structure play an important role in understanding of nuclear structure properties.There are lots of works have been done[1?6] to study the nuclear cluster structure properties.. It is a very importantmethod to investigate the nuclear cluster structure through analyzing the breakup reaction of the interesting nucleus.The experimental study of the cluster structure of 9Li through analyzing its breakup fragments was performed atRadioactive Ions Beam Line in Lanzhou (RIBLL). The light charged particles were measured by a ΔE-E telescopearray. Also the energy distribution of the fragments have been measured in this experiment. | Ma Weihu Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Jin Shilun Bai Zhen Huang Meirong Wang Qi Zhou Yuanjie Chen Jie | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 5 | 重离子核反应组研究进展显示文摘The Heavy Ion Reaction Group at IMP has been working in the fields of elastic scattering,breakup reaction and three-body forces both experimentally and theoretically.The progresses of the researches in 2017 are given briefly as follows.Four different experiments employing around 500 h beam-time were carried out at the RIBLL1.The users are from Hongkong University,China Institute of Atomic Energy,National Space Science Center and Institute of Modern Physics.The aims of these experiments were to study the elastic scattering,breakup of neutron-rich nucleus 11Be,and proton decay of ^(26)P,^(27)S,^(23)Si and ^(22)Al. | Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Liu Xingquan Hu Qiang Bai Zhen Yu Gongming D.Patel Duan Fangfang Gao Zhihao Yu Yuechao Ma Weihu | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 6 | 高于库仑位垒能区的^(11)Be+^(208)Pb的弹性散射和破裂反应测量显示文摘Our previous experimental result for proton-rich nucleus ^(8)B at above the Coulomb barrier shows that in spite of its low proton separation energy(0.136 MeV)there is no strong breakup coupling effects[1].The fact is in contrast to the observation of neutron-rich nuclei ^(11)Be around the Coulomb barrier.A systematic study for elastic scattering cross sections of neutron-rich nucleus ^(11)Be and the proton-halo nucleus ^(8)B at low and higher energies shows that the Coulomb rainbow in the elastic scattering of ^(11)Be is still strongly suppressed at high energies[2].In order to examine the predictions,experimental measurements for 11Be elastic scattering and breakup for ^(11)Be+^(208)Pb system at 141 and 209 MeV were performed at the National Laboratory of Heavy Ion Research of the Institute of Modern Physics,Lanzhou,China. | Yang Yanyun Wang Jiansong Liu Xingquan Duan Fangfang Gao Zhihao DPatel Ma Peng Ma Junbing Bai Zhen Hu Qiang Yu Yuechao Yu Gongming Ma Weihu | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 7 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，4： | 0 |
| 8 | 2-24 Research Progress of Heavy Ion Reaction Group显示文摘In 2016,the environment of the power supply of RIBLL1 is improved by building a closed space with air condition.It will be good for the magnetic stability which is directly affected by the stability of the power supply.There are 9 experiments,more than 1 165.5 h beam-time,carried out at the RIBLL1.The users are from Peking University,China Institute of Atomic Energy,Shanghai Institute of Applied Physics,National Space Science Center,Institute of High Energy Physics and Institute of Modern Physics. | Wang Jiansong Yang Yanyun Ma Peng Jin Shilun Ma Junbing Liu Xingquan Bai Zhen Ma Weihu Wang Qi Hu Qiang Yu Gongming D.Patel Gao Zhihao Duan Fangfang Zhang Xing Jiao Lei Yu Yuechao | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 9 | 2-26 Experimental Measurement of 12N,13O on natPb Elastic Scattering Above the Coulomb Barriers显示文摘Elastic scattering is an ideal tool to study the information of the exotic structure and reaction mechanism of the weakly bound nuclei.A great deal of elastic scattering experiments have been performed for neutron halo nuclei,such as 6He,11Li and 11Be[1].However,elastic scattering data for proton halo nuclei above the Coulomb barrier are still scarce.13O and 12N,with small separation energies,are good candidates of proton halo nuclei.The 13O and 12N induced elastic scattering is experimentally investigated. | Liu Xingquan Yang Yanyun Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 10 | 2-27 Experimental Measurement of 7Be,8B and 9C on natPb Elastic Scattering Above the Coulomb Barriers显示文摘The experiment was performed at the National Laboratory of Heavy Ion Research of the Institute of Modern Physics,Lanzhou,China.The secondary beams of radioactive isotopes were produced by the fragmentation of the 12C6+primary on a 9Be target with a thickness of 2 652 m[1;2].The secondary beams,7Be,8B and 9C beams were delivered by the Radioactive Ion Beam Line in Lanzhou(RIBLL)[3,4]and impinged on a natPb target at RIBLL Terminal.The energies of the secondary beams,at the physical target,were about three times the Coulomb barriers,130 MeV for 7Be,178 MeV for 8B and 227 MeV for 9C,respectively. | Yang Yanyun Liu Xingquan Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 11 | 2-15 Research Progress of Heavy Ion Reaction Group显示文摘Alignment of RIBLL1 is adjusted and the control system of the power supply of the magnets of RIBLL1 is upgraded in 2015. 8 experiments, more than 1 000 h beams, have been carried out at the Radioactive Ion Beam Line in Lanzhou (RIBLL1) in 2015. Many research topics are included, such as the mechanism study of -delayed di-proton decay and the correlation measurement of emitted two protons for 22Si and 23Si, elastic scattering of 17F, the study of molecular state of 20O, Coulomb excitation of 37S and decay of 37P, study of the effects of dynamic polarization in low energy reaction induced by the proton-rich exotic nuclei, decay of proton-rich fp shell nuclei with mass around 50. | Wang Jiansong Yang Yanyun Ma Peng Jin Shilun Ma Junbing Liu Xingquan Bai Zhen Ma Weihu Wang Qi Hu Qiang | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
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