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| 1 | Shell model calculations for the allowed Gamow-Teller β-decays of light nuclei显示文摘The allowed Gamow-Teller β-decay information of Li,Be,B,C,and N isotopes under the frame work of nuclear shell model is calculated herein.Theoretical results of Q values,half-lives,excitation energies,log ft values,branching fractions,and β-delayed proton/neutron emission probabilities are tabulated and compared with experimental data.The deviations from the observations are also analyzed.The 11Be nucleus is well known for its anomaly ground state Jπ=1/2+.Thus,we compared the theoretical energy levels with the experimental data and the agreements for low excitation states are consistent.The quenching factor is also evaluated and discussed. | LI HanTao REN ZhongZhou | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，6： | 5 |
| 2 | Calculations of electric quadrupole moments and charge radii for high-K isomers显示文摘Configuration-constrained potential-energy-surface calculations are performed to investigate high-K isomers in97Y,130Ba,176Yb,177Lu,and178Hf that were observed to have increased electric quadrupole moments but decreased charge radii relative to the states on which they are built.Taking into account the efects of deformation change and unpaired protons,our calculations can reproduce the enhancement of electric quadrupole moments for the isomers in97Y,130Ba,176Yb,177Lu and the Kπ=8 isomer in178Hf,and can reproduce the reduction of charge radii for the Kπ=27/2 isomer in97Y and the Kπ=16+isomer in178Hf. | LIU HongLiang XU FuRong | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，11： | 5 |
| 3 | Progress of quantum molecular dynamics model and its applications in heavy ion collisions显示文摘In this review article,we first briefty introduce the transport theory and quantum molecular dynamics model applied in the study of the heavy ion collisions from low to intermediate energies.The developments of improved quantum molecular dynamics model(ImQMD)and ultra-relativistic quantum molecular dynamics model(UrQMD),are reviewed.The reaction mechanism and phenomena related to the fusion,multinucleon transrer,fragmentation,collective flow and particle production are reviewed and discussed within the framework of the two models.The constraints on the isospin asymmetric muclear equation of state and in-medium nucleon nucleon cross sections by comparing the heavy ion collision data with transport models calculations in last decades are also discussed,and the uncertainties of these constraints are analyzed as well.Finally,we discuss the future direction of the development of the transport models for improving the understanding of the reaction mechanism,the descriptions of various observables,the constraint on the nuclear equation of state,as well as for the constraint on in-medium nucleon-nucleon cross sections. | Ying-Xun Zhang Ning Wang Qing-Feng Li Li Ou Jun-Long Tian Min Liu Kai Zhao Xi-Zhen Wu Zhu-Xia Li | 2020 | Frontiers of physics2020，15，5： | 5 |
| 4 | 基于两势方法系统研究壳结构对原子核α衰变的影响显示文摘基于两势方法(two–potential–approach,TPA)系统研究了偶-偶核、奇-A核和奇-奇核α衰变半衰期。为了考虑原子核的壳结构的影响而导致的实验半衰期与计算结果之间的偏差,引入了与α结团形成概率相关的禁戒因子和预形成因子。结合前期相关工作[X. D. Sun et al., Phys. Rev. C 93, 034316 (2016); X. D. Sun et al., Phys. Rev. C 95, 014319 (2017);X. D. Sun et al., Phys. Rev. C 95, 044303 (2017)],考虑到壳效应对α粒子预形成的影响,通过分析α衰变半衰期的实验数据,拟合得到了α粒子预形成因子/禁戒因子修正公式的参数,得到了α衰变预形成因子/禁戒因子的计算结果,证实了壳效应及质子-中子相互作用在α结团形成过程中起着重要的作用,离壳越近预形成概率越小离壳越远预形成概率越大。 | 陈玖龙 程俊皓 邓军刚 李小华 | 2018 | 原子核物理评论2018，35，4： | 3 |
| 5 | 等时性质量谱仪中N=Z核质量测量的方法探索显示文摘N=Z核的质量数据对于研究rp-和νp-过程至关重要。此外,N=Z原子核的质量数据将会帮助我们解决与核结构有关的许多关键问题。结合碎片分离器的等时性质谱仪(Isochronous mass spectrometry,IMS)是十分快速有效而且高分辨的质量测量工具。由于N=Z核的m/q值非常接近,目前国际上的储存环质量谱仪CSRe/IMP和ESR/GSI还无法实现对N=Z核运用飞行时间谱进行鉴别,因而无法对它们进行质量测量。在日本理化学研究所的仁科加速器中心新建了专用的等时性质谱仪(IMS),即稀有放射性同位素储存环'Rare-RI Ring'(R3),以确定短寿命的放射性原子核的质量,其目标质量相对精度为10-6。R3质谱仪与高分辨的碎片分离器BigRIPS的组合,运用束流线的高分辨的离子鉴别,使得R3上的IMS方法对N=Z核进行质量测量成为可能。本文设计了专用的等时性束流光学设置,模拟了124Xe的主束经过碎裂反应产生的N=Z核在束流线中穿过各焦平面的径迹、能量、速度等信息,同时检验了这些次级束在环内的飞行时间相对于动量的变化关系。模拟的结果表明:当储存环的等时性光学设置在某一个N=Z核时,所有其它N=Z核在环内的回旋时间也与动量弥散无关,说明了这些核也满足等时性条件。基于N=Z核的这种等时性的特点,本文对R3上刻度N=Z核的方法也进行了讨论。 | 葛壮 王茜 王猛 上坂友洋 | 2019 | 原子核物理评论2019，36，3： | 1 |
| 6 | ^(56)Fe+p散裂核反应中的正电子放射核产生显示文摘利用现有GSI-FRS实验测量的300、500、750、1000和1500 MeV/u 56Fe+p散裂反应产物的结果,分析了正电子放射核在散裂反应中产额随入射能量的变化关系.对正电子放射核的半衰期按照时间量级分类统计表明,半衰期在分钟以上的正电子放射核的总截面的总截面随系统能量在50~70mb之间,所有产生的正电子放射核的截面随反应系统能量变化较小,保持在103mb附近.对一些正电子放射核的截面分析表明它们随入射能量指数变化.这对于当前质子和重离子治疗中利用正电子放射核进行实时正电子监测成像研究具有意义. | 程瑞学 许景丽 马春旺 王芳 代智涛 | 2016 | 河南师范大学学报(自然科学版)2016，44，4： | 1 |
| 7 | 相对论准粒子无规相位近似对原子核β衰变寿命的研究显示文摘原子核β衰变寿命是原子核的重要性质之一,对核物理、核天体物理以及粒子物理的研究都具有重要影响.本文简要回顾了近年来相对论准粒子无规相位近似(QRPA)对原子核β衰变寿命的研究进展.首先介绍了研究β衰变寿命的重要性以及计算β衰变寿命的理论模型,随后给出了计算β衰变寿命的Fermi理论.然后,详细介绍了相对论QRPA研究原子核β衰变寿命的最新进展,特别关注于同位旋标量道粒子-粒子剩余相互作用对研究原子核β衰变寿命的影响,并介绍了相对论QRPA预言的β衰变寿命对快中子俘获过程丰度分布的影响.最后给出总结与展望. | 王章银 牛中明 | 2016 | 中国科学:物理学、力学、天文学2016，46，1： | 1 |
| 8 | Systematic study of α preformation probability of nuclear isomeric and ground states显示文摘In this paper, based on the two-potential approach combining with the isospin dependent nuclear potential, we systematically compare the α preformation probabilities of odd-A nuclei between nuclear isomeric states and ground states. The results indicate that during the process of α particle preforming, the low lying nuclear isomeric states are similar to ground states. Meanwhile, in the framework of single nucleon energy level structure, we find that for nuclei with nucleon number below the magic numbers, the α preformation probabilities of high-spin states seem to be larger than low ones. For nuclei with nucleon number above the magic numbers, the α preformation probabilities of isomeric states are larger than those of ground states. | 孙小东 吴喜军 郑波 向东 郭萍 李小华 | 2017 | Chinese Physics C2017，41，1： | 0 |
| 9 | 丰中子奇A核^(37-47)P自旋和宇称的相对论平均场模型研究显示文摘用相对论平均场模型结合NL3、TM2和NL-SH参数对P的奇A核同位素的2s1/2和1d3/2单质子能级变化趋势以及自旋和宇称进行了理论计算。发现丰中子同位素37-47P,尤其是47P中可能存在2s1/2和1d3/2单质子能级反转。对于37P和39P,TM2和NL-SH参数给出的自旋和宇称是(3/2)+,NL3给出的是(1/2)+;对于41-47P,NL3、TM2和NL-SH给出的自旋和宇称都是(3/2)+。自旋和宇称的结果只有部分和NUBASE2012中的估计值是一致的。 | 王再军 | 2014 | 天津职业技术师范大学学报2014，24，1： | 0 |
| 10 | 质子能级反转对Ar-K同位旋相似态库伦移动能的影响显示文摘在相对论平均场框架内结合NL-SH和TM1/TM2参数计算和讨论了质量数在A=35~47区间,Ar质子能级反转对Ar-K同位旋相似态库伦移动能的影响。计算分为考虑Ar丰中子同位素的2s_(1/2)和1d_(3/2)质子能级反转和不考虑Ar丰中子同位素的2s_(1/2)和1d_(3/2)质子能级反转2种情况。计算结果显示:Ar的2s_(1/2)和1d_(3/2)质子能级反转可能会导致Ar-K同位旋相似态库伦移动能降低0.06 MeV^0.17 MeV。该结果既可以为实验上研究原子核核子能级反转提供参考,也可以为相对论平均场模型提供新的检验。 | 王再军 | 2018 | 天津职业技术师范大学学报2018，28，2： | 0 |
| 11 | Half-lives of double β^- -decay with two neutrinos显示文摘Nuclear double β--decay with two neutrinos is an important decay mode for some unstable nuclei. Based on the available experimental data of nuclear double β--decay, we propose that there is a law between the logarithm of double β--decay half-lives and the reciprocal of the decay energy. The physics behind the law is discussed and it is found that this is associated with the universal properties of the weak interaction. This doubleβ--decay law is similar to the famous Geiger-Nuttall law of α-decay. The law is applied to predictions of the nuclear double β--decay half-lives for six even-even nuclei from Z = 84 to Z = 98 and we found that232 Th is very interesting for future experiments. The branching ratios between double β--decay and α-decay are also estimated for the six even-even nuclei and this is useful for future experimental search of new emitters of doubleβ--decay. | 任月皎 任中洲 | 2015 | Nuclear Science and Techniques2015，26，2： | 0 |
| 12 | Calculation of double-β decay half-lives using an improved Primakoff-Rosen formula显示文摘A systematic analysis on experimental data of the half-lives of nuclear double-β decays with two neutrinos(2vββ)is performed based on the analytical formula proposed by Primakoff and Rosen.We improve the formula by considering the shell effects and refining the energy dependence of the phase-space factor.This improved formula can closely describe all available experimental half-lives of 2vβ^(-)β^(-)decays,both for ground-state transitions and transitions from ground states of parent nuclei to the first 0+excited states of daughter nuclei.The calculated half-lives agree with the experimental data of ground-state transitions of all known eleven nuclei with an aver-age factor of 2.3.Further predictions are provided for 2vββ-decay candidates with decay energies above 0.5 MeV.We compare different theoretical predictions and emphasize the importance of experimental measurements on the half-lives of double-β transitions between the ground state of 48Ca,76 Ge,and 136Xe and the first 0+excited states of their corresponding daughter nuclei,which will be very useful for understanding the underlying mechanisms of double-β decays and for further studying the shell effects on nuclear transition matrix elements. | 支启军 张小平 游击林 郑强 任中洲 | 2021 | Chinese Physics C2021，45，8： | 0 |
| 13 | Half-lives of double β^+-decay with two neutrinos显示文摘Nuclear doubleβ--decays with two neutrinos were observed for many years and a systematic law describing the relation between their half-lives and decay energies was also proposed recently[Phys Rev C,2014,89:064603].However,doubleβ+-decay(β+β+)with emission of both two positrons and two neutrinos has not been observed up to date.In this article,we perform a systematic analysis on the candidates of doubleβ+-decay,based on the 2012 nuclear mass table.Eight nuclei are found to be the good candidates for doubleβ+-decay and their half-lives are predicted according to the generalization of the systematic law to doubleβ+-decay.As far as we know,there is no theoretical result on doubleβ+-decay of nucleus154Dy and our result is the first prediction on this nucleus.This is also the first complete research on eight doubleβ+-decay candidates based on the available data of nuclear masses.It is expected that the calculated half-lives of doubleβ+-decay in this article will be useful for future experimental search of doubleβ+-decay. | REN YueJiao REN ZhongZhou | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，1： | 0 |
| 14 | 双β衰变半衰期的唯象学研究显示文摘为了研究一个能较好描述实验数据的联系双β衰变半衰期和衰变能的唯象学公式的物理意义,通过对双β衰变相空间因子的分析,给出了该唯象学公式中双β衰变半衰期的对数和衰变能的反比关系的物理来源的一个可能的解释。此外,在该唯象学公式的基础上,基于壳模型理论,对该唯象学公式做出了改进。结果表明,唯象学公式中的对数反比关系是由双β衰变的相空间因子所造成的。按照改进后的公式所计算得到的双β衰变半衰期的对数的理论值与实验值之间的平均偏差由原本的0.486下降到了0.408。 | 肖杨 耿立升 | 2016 | 北京航空航天大学学报2016，42，10： | 0 |
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