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1β-delayed proton decays near the proton drip line显示文摘We briefly reviewed the experimental study on a-delayed proton decays near the proton drip line published by our group during the period of 1996―2004, namely the first observation of the a-delayed proton decays of 9 new nuclides in the rare-earth region and the new measurements of a-delayed proton decays of 5 nuclides in the mass ~90 region near the N = Z line with the aid of the “p-?” coincidence in combination with a He-jet tape transport system. In the meantime some important experimental technique details were supplemented. The experimental results, including the half -lives, spins, parities, deformations and production reaction cross sections for the 14 nuclei were summarized and compared with the current nuclear-model predictions, and then the following points were represented. (1) The experimental half-lives for 85Mo and 92Rh as well as the predicted “waiting point” nuclei 89Ru and 93Pd are 5―10 times longer than the theoretical predictions given by M?ller et al. using a macroscopic-microscopic model. It considerably influences the predictions of the abundances of the nuclides produced in the rp-process. (2) The current-model predictions are not consistent with the experimental assignments of the spins and parities for the proton drip-line nuclei 142Ho and 128Pm. However, the nuclear potential energy surface (PES) calculated by using a Woods- Saxon-Strutinsky method reproduced the experimental results. (3) The Alice code overestimated the production reaction cross sections of the studied 9 rare-earth nuclei by one order of magnitude or two, while HIVAP code overestimated them by one order of magnitude approximately.XU Shuwei 1 , LI Zhankui 1 , XIE Yuanxiang 1 , HUANG Wenxue 1 , SHU Nengchuan 2 , CHEN Yongshou 2 , XU Furong 3 , WANG Kun 4 , PAN Qiangyan 1 , WANG Xudong 1 , YU Yong 1 & XING Yebing 1 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2. Nuclear Physics Department, China Institute of Atomic Energy, Beijing 102413, China 3. Department of Technical Physics, Peking University, Beijing 100871, China 4. Shanghai Institute for Nuclear Research, Shanghai 201800, China 2005Science China(Physics,Mechanics & Astronomy)2005,48,3:2
2New neutron-rich nuclide185Hf显示文摘Yuan Shuanggui Zhang Tianmei Pan qiangyan Zhang Xueqian Xu Shuwei 1992Zeitschrift für Physik A Hadrons and Nuclei1992,,3:1
3β-delayed proton decay of89Ru显示文摘Zhankui Li Shuwei Xu Yong Yu Yuanxiang Xie Chunfang Wang Jianping Xing Qiangyan Pan Qingyuan Hu Shihong Li Hongyan Chen Tianmei Zhang 2000Science in China Series A: Mathematics2000,,12:1
4New β-delayed proton decays in the rare-earth region near the proton drip line显示文摘Shuwei Xu Zhankui Li Yuanxiang Xie Yong Yu Qiangyan Pan Chunfang Wang Jianping Xing Ruichang Ma Yuanxiu Ge Tianmei Zhang 2000Science in China Series A: Mathematics2000,,8:1
5Human dynamic model co-driven l)y interest and social identity in the MicroHlog com-munity 显示文摘QiangYan Lanli Yi Lianren Wu 2011Physica A2011,,:1
6Measurement of Cross Sections for Ba Isotopes显示文摘In the recent decades,great attention has been paid on the heavy ion collisions under intermediate energy^([1~4]).Early studies mainly focused on the nuclear collisions under low and high energy^([5,6]).In low energy nuclear collisions,the behavior of the colliding nuclei is determined by their mean field,while in high energy nuclear collisions it is the collision of individual nucleons in the nuclei that determines the outcome of the reaction.Xu Yanbing, Yuan Shuanggui, Yang Weifan, Xiao Yonghou, Pan Qiangyan and Li Yingjun 2001IMP & HIRFL Annual Report2001,,1:1
7(EC+ ) decay of 130Nd and 140Tb显示文摘Xu Shuwei Xie Yuanxiang Yu Yong Li Zhankui Pan Qiangyan Wang Chunfang Xing Jianping Zhang Tianmei 2000The European Physical Journal A2000,,4:1
8β-delayed Proton Decays near Proton Drip Line显示文摘We briefly reviewed the experimental study onβ-delayed proton decays near the proton drip line published by our group during the period of 1996-2004, namely the first observation of theβ-delayed proton decays of 9 new nuclides in the rare-earth region (Fig.1)and the new measurements ofβ-delayed proton decays of 5 nuclides in the mass≈90 region near the N = Z line (Fig. 2) with the aid of the 'p-γ'Xu Shuwei Li Zhankui Xie Yuanxiang Huang Wenxue Shu Nengchuan Chen Yongshou Xu Furong Wang Kun Pan Qiangyan Wang Xudong Yu Yong Xing Yebing 2005近代物理研究所和兰州重离子加速器实验室年报:英文版2005,,1:0
9On Beam Study of^(198)Bi Decay显示文摘Excited nucleus ^(198)Bi was produced via the ^(187)Re(16O,5n)^(198)Bi reaction.Theγ-rays following theβ+/EC(electron capture)decay of ^(198)Bi were measured in beam by using a powerful multidetector system.Based on coincidences with the knownγ-rays of ^(198)Pb,five new transitions were identified and eight new energy levels were established for ^(198)Pb.ZHOU Xiaohong SUN Xiangfu LEI Xiangguo JIN Hanjuan LIU Zhong ZHANG Yuhu PAN Qiangyan GUO Yingxiang LUO Yixiao WEN Shuxian YUAN Guanjun LI Guangsheng YANG Chunxiang 1995Chinese Physics Letters1995,12,1:0
10Preparation of Pa Radioactive Sources by Electroplating Method显示文摘PreparationofPaRadioactiveSourcesbyElectroplatingMethod¥LiZongwei;YangWeifan;FangKeging;YuanShuanggui;GuoJunshengandPanQiangy...Li Zongwei Yang Weifan Fang Keging Yuan Shuanggui Guo Junsheng and Pan Qiangyan 1996IMP & HIRFL Annual Report1996,,1:0
11Computational Investigation of the Interaction Between Hydrogen Atoms and an Intense Circularly Polarized Laser Field显示文摘The study of interactions between a high-power laser and atoms has been one of the fundamental and interesting topics in strong field physics for decades.Based on a nonperturbativemodel,ten years ago,we developed a set of programs to facilitate the study of interactions between a circularly polarized laser and atomic hydrogen.These programs included only contribution from the bound states of the hydrogen atom.However,as the laser intensity increases,contribution from continuum states to the excitation and ionization processes becomes larger and can no longer be neglected.Furthermore,because the original code is not able to add this contribution directly due to its many disadvantages,a major upgrade of the code is required before including the contribution from continuum states in future.In this paper,first we deduce some important formulas for contribution of continuum states and present modifications and tests for the upgraded code in detail.Second we show some comparisons among new results,old results from the original codes and the available experimental data.Overall the new result agrees with experimental data well.Last we present our calculation of above-threshold ionization(ATI)rate and compare it with a pertubative calculation.The comparison shows that our nonperturbative calculation can also produce ATI peak suppression.Lifeng Yang Wang Xu Qiren Zhang Wen Luo Qiangyan Pan Xiaolu Cai Gongtao Fan Yongjiang Li Benji Xu Zhe Yan Guangwei Fan Zhendong An 2012Communications in Computational Physics2012,11,3:0
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