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Chinese Physics C 2024年第2期48卷 153-161页

作者：徐永丽苏新武孙志豪韩银录孙小军张冬红蔡崇海 College of Physics and Electronic Science Shanxi Datong UniversityDatong 037009China Graduate School of China Academy of Engineering Physics Beijing 100088China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China College of Physics Guangxi Normal UniversityGuilin 541004China Department of Physics Nankai UniversityTianjin 300071China

The experimental data of elastic scattering angular distributions for 9Be,10B,11B,12C,13C,15N,and 16O targets from 4.5 to 131.8 MeV and 7Li target from 8.0 to 42.0 MeV are fitted to realize the global phenomenological optical potentials(GPOPs)for the 7Li-induced reactions on 1p-shell ***,the 7Li elastic scattering from the 1p-shell nuclei can be systematically described using the established *** elastic scattering angular distributions are also reanalyzed using a microscopic method within the framework of the new version of double folding S?o Paulo potential(SPP2).To better describe the elastic scattering at backward angles,the contribution of elastic transfer is further estimated by the distorted wave Born approximation(DWBA)*** on the obtained GPOPs,the inelastic scattering angular distributions are also obtained through the coupled channels(CC)method for the different excited states.

关键词： optical potential elastic scattering nuclear reaction mechanisms

Parametrization of woods-saxon potential for heavy-ion systems

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Science China(Physics,Mechanics & Astronomy) 2017年第8期60卷 28-34页

作者： Lin Gan ZhiHong Li HuiBin Sun DanYang Pang Bing Guo YunJu Li Jun Su ShengQuan Yan ErTao Li YouBao Wang Gang Lian ZhiYu Han XinYue Li DongHui Li TianLi Ma ChangJin Pei YangPing Shen Yi Su Sheng Zeng Yong Zhou WeiPing Liu China Institute of Atomic Energy College of Physics and Energy Shenzhen University School of Physics and Nuclear Energy Engineering Beihang University

Several elastic scattering angular distributions of 12C from target nuclei of A≥ 39 are analyzed to extract the Woods-Saxon poten- tial parameters with the fixed imaginary potential and Coulomb radius parameters. Using the best fitted diffuseness parameters, the correlations of the real part parameters with A1/3 1 ＋ A1/3 2and incident energy are revealed, and the systematic Woods-Saxon potential parameters are presented for nucleus-nucleus interaction. The proposed potential parameters can reproduce not only the elastic scattering angular distributions induced by 12C, but also many elastic scattering angular distributions induced by the projectiles other than 12C, thus providing important inputs for the study of nuclear reactions of heavy-ion systems.

关键词： optical potential elastic scattering heavy-ion reactions

optical Stark deceleration of neutral molecules from supersonic expansion with a rotating laser beam

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Chinese Physics B 2018年第5期27卷 187-193页

作者： Yongcheng Yang Shunyong Hou Lianzhong Deng State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China

Cold molecules have great scientific significance in high-resolution spectroscopy, precision measurement of physical constants, cold collision, and cold chemistry. Supersonic expansion is a conventional and versatile method to produce cold molecules with high kinetic energies. We theoretically show here that fast-moving molecules from supersonic expansion can be effectively decelerated to any desired velocity with a rotating laser beam. The orbiting focus spot of the red-detuned laser serves as a two-dimensional potential well for the molecules. We analyze the dynamics of the molecules inside the decelerating potential well and investigate the dependence of their phase acceptance by the potential well on the tilting angle of the laser beam. ND_3 molecules are used in the test of the scheme and their trajectories under the impact of the decelerating potential well are numerically simulated using the Monte Carlo method. For instance, with a laser beam of20 k W in power focused into a pot of 40 μm in waist radius, ND3 molecules of 250 m/s can be brought to a standstill by the decelerating potential well within a time interval of about 0.73 ms. The total angle covered by the rotating laser beam is about 5.24？with the distance travelled by the potential well being about 9.13 cm. In fact, the molecules can be decelerated to any desired velocity depending on the parameters adopted. This scheme is simple in structure and easy to be realized in experiment. In addition, it is applicable to decelerating both molecules and atoms.

关键词： cold molecules optical potential Stark deceleration

A crossed focused vortex beam with application to cold molecules

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Chinese Physics B 2021年第11期30卷 331-337页

作者： Meng Xia Yaling Yin Chunying Pei Yuer Ye Ruoxi Gu Kang Yan Di Wu Yong Xia Jianping Yin State Key Laboratory of Precision Apectroscopy School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China NYU-ECNU Institute of Physics at NYU Shanghai Shanghai 200062China

We report the generation of a crossed,focused,optical vortex beam by using a pair of hybrid holograms,which combine the vortex phase and lens phase onto a spatial light *** study the intensity distributions of the vortex beam in free propagation space,and the relationship of its dark spot size with the incident Gaussian beam’s waist,the lens’s focal length,and its orbital angular *** results show that the crossed,focused,vortex beam’s dark spot size can be as small as 16.3μm and adjustable by the quantum number of the orbital angular momentum,and can be used to increase the density of trapped ***,we calculate the optical potential of the blue-detuned,crossed vortex beam for MgF *** is applicable to cool and trap neutral molecules by intensity-gradient-induced Sisyphus cooling,as the intensity gradient of such vortex beam is extremely high near the focal point.

关键词： cold molecule crossed focused vortex beam propagation characteristics optical potential

η-nucleus bound states in nuclei

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Chinese Physics C 2010年第4期34卷 460-464页

作者：王滕滕 Institute of Theoretical Physics College of Applied SciencesBeijing University of Technology

The binding energies εη and widths Гη of wmesic nuclei are calculated. We parameterize the η self-energy in the nuclear medium as a function of energy and density. We find that the single-particle energies are sensitive to the scattering length, and increase monotonically with the nucleus. The key point for the study of η-nucleus bound states is the η-nuclear optical potential. We study the s-wave interactions of η mesons in a nuclear medium and obtain the optical potential Uη ≈ -72 MeV. Comparing our results with the previous results, we find that the ηN scattering length aηN is indeed important to the calculations. With increasing nuclear density the effective mass of the η meson decreases.

关键词： mesic nuclei binding energy self-energy optical potential

Differential Cross Sections for Elastic Scattering of Low－Energy Electrons by O2

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Chinese Physics Letters 2004年第3期21卷 472-473页

作者：刘文旺周雅君王志刚 InstituteofAtomicandMolecularPhysics JilinUniversityChangchun130012

Differential cross sections for the elastic scattering of electrons by oxygen molecule are calculated for selected impact energies 7 eV and 9 eV. The results are compared with other theoretical results and experimental data. The present results are obtained by the momentum–space optical potential method. This method take the polarization of target states into account, which is very important for the scattering problem, particularly at low energies.

关键词： Electrons Differential cross sections elastic scattering LOW ENERGY Polarization IMPACT ENERGY optical potential Cross section

Systematic study of the Woods-Saxon potential parameters between heavy-ions

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Chinese Physics C 2021年第5期45卷 149-156页

作者： Lin Gan Zhi-Hong Li Hui-Bin Sun Shi-Peng Hu Er-Tao Li Jian Zhong Key Laboratory of Optoelectronic Devices and Systerms of Ministry of Education and Guangdong Provinee College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China China Institute of Atomic Energy Beijing 102413China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 101408.China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China

Experimental elastic scattering angular distributions of 11B,2C,and 16O+heavy-ions are used to studythe Woods-Saxon potential *** fitted values of the diffuseness parameters are found for each system,and a linear relationship is expressed between the diffuseness parameters and A1/31+A1/*** correlation of the po-tential depth and radius parameters with A1/31+A1/32is also revealed within the limitations of the diffuseness parameter *** the incident energies of most of the analyzed reactions are below or around the Coulombbarrier,the energy dispersion relation between the real and imaginary potentials is considered in order to investigatethe ratio between the imaginary and real potential well depths,resulting in an expression of W/*** the limitation of the volume integrals calculated with the Sao Paulo potential,parameterized formulas for the depth and radius parameters are *** systematic Woods-Saxon potential parameters derived in the present work can reproduce not only the experimental data of elastic scattering angular distributions induced by 11B,12C,and 16O butalso some elastic scattering induced by other heavy-ions.

关键词： optical potential elastic scattering heavy-ion reactions

A Study of Intermediate Energy Proton-^16O Elastic Scattering Based on the α-Particle Model

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Communications in Theoretical Physics 2007年第4期47卷 711-714页

作者： ZHANG Rong YANG Yong-Xu LU Xiao LI Qing-Run Department of Physics Guangxi Normal University Guilin 541004 China College of Science China University of Mining and Technology Xuzhou 221008 China Institute of High Energy Physics Academia Sinica Beijing 100039 China

In the framework of KMT multiple scattering theory, an optical potential for the intermediate energy proton-160 elastic scattering is presented based on the α particle model of 160. The differential cross sections, the analyzing powers, and the total cross sections of the intermediate energy proton-160 scattering have been calculated by using the obtained optical potential. The main features of the measured angular distributions of the cross section and the analyzing power can be well described. The calculated total cross sections are in good agreement with the experimental data at energies below 0.7 GeV and underestimate the data about 8% at higher energies.

关键词： proton-nucleus elastic scattering nuclear a-particle model optical potential

A Study of Intermediate Energy Proton-160 Elastic Scattering Based on the α-Particle Model

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Communications in Theoretical Physics 2007年第4期 711-714页

作者： ZHANG Rong~(1,2) YANG Yong-Xu~(1,+) LU Xiao~1 LI Qing-Run~31 Department of Physics,Guangxi Normal University,Guilin 541004,China2 College of Science,China University of Mining and Technology,Xuzhou 221008,China3 Institute of High Energy Physics,Academia Sinica,Beijing 100039,China Depaxtment of Physics Guangxi Normal UniversityGuilin 541004China College of Science China University of Mining and TechnologyXuzhou 221008China Depaxtment of Physics Guangxi Normal UniversityGuilin 541004China Institute of High Energy Physics Academia SinicaBeijing 100039China

In the framework of KMT multiple scattering theory,an optical potential for the intermediate energyproton-;O elastic scattering is presented based on the α particle model of;*** differential cross sections,theanalyzing powers,and the total cross sections of the intermediate energy proton-;O scattering have been calculated byusing the obtained optical *** main features of the measured angular distributions of the cross section and theanalyzing power can be well *** calculated total cross sections are in good agreement with the experimentaldata at energies below 0.7 GeV and underestimate the data about 8% at higher energies.

关键词： proton-nucleus elastic scattering nuclear α-particle model optical potential