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distribution OF VORTEX barrierS AT DIFFERENT TEMPERATURES FOR TL 2212 FILM

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南京大学学报(自然科学) 1999年第4期35卷 500-501页

作者： Lin Fenyong Ding Shiying (National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University,210093,Nanjing,PRC) 南京大学物理系固体微结构物理国家重点实验室江苏

Double folding model calculation applied to fusion reactions

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Chinese Physics C 2008年第10期32卷 812-815页

作者：张高龙乐小云 Department of Physics School of SciencesBeijing University of Aeronautics & Astronautics

The interaction potential between a spherical and a deformed nucleus is calculated within the double-folding model for deformed nuclei. We solve the double folding potential numerically by using the truncated multipole expansion method. The shape, separation and orientation dependence of the interaction potential, fusion cross section and barrier distribution of the system ^16O＋^154Sm are investigated by considering the quadrupole and hexadecapole deformations of ^154Sm. It is shown that the height and the position of the barrier depend strongly on the deformation and the orientation angles of the deformed nucleus. These are quite important quantities for heavy-ion fusion reactions, and hence produce great effects on the fusion cross section and barrier distribution.

关键词： heavy-ion fusion reaction double folding model deformation barrier distribution

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Scattering and fusion reaction dynamics of O+Zr system around Coulomb barrier

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Chinese Physics C 2022年第12期46卷 241-248页

作者： C.Dash R.R.Swain G.Tripathy I.Naik B.B.Sahu Department of physics MSCBD UniversityBaripada 757003India School of Applied Sciences KIIT Deemed to be UniversityBhubaneswar 751024India

A partial wave scattering matrix for the total effective complex potential of nucleus nucleus collisions is proposed to easily analyze the angular variations of elastic scattering and fusion cross-sections simultaneously with a unique *** expectation value of the imaginary part of the potential calculated using the distorted waves from the full potential in the elastic channel accounts for σ_(r).This is equated to the sum of the cross-sections due to absorption in different regions of the potential where the imaginary part is actively *** potential is taken as energy independent and features a weakly absorbing nature,which supports the resonance states in various partial wave ***,these resonances show oscillatory behavior changes with respect to energy D(E_(c.m.))=d^(2)(E_(c.m.)σ_(fus))/dE_(c.m.)^(2).In this paper,we discuss elastic scattering and fusion cross-sections in conjunction with the results of D(E_(c.m.))for the^(16)+^(92)Zr system.

关键词： elastic scattering fusion cross-section barrier distribution

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Sub-barrier fusion of 32S+90,96Zr:Investigation for the role of neutron transfer in sub-barrier fusion reactions

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Sub-barrier fusion of 32S+90,96Zr:Investigation for the role...

THE STUDY OF LOOSELY BOUND EFFECT IN HEAVY-ION REACTIONS

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： A.Richard Department of Nuclear Physics China Institute of Atomic Energy(CIAE)

The fusion excitation functions were measured with high precision for S + Zr around the Coulomb barrier,and barrier distributions were extracted from the measured excitation *** sub-barrier cross sections for S + Zr are much larger compared with S +***-classical coupled-channels calculations including the low-lying quadruple and octupole vibrations are capable to describe sub-barrier enhancement only for S and Zr.-The remaining disagreement for S and Zr comes from the positive Q-value intermediate neutron transfers in this system.A comparison with the data on Ca + Zr shows that the two systems S,Ca + Zr display similar barrier *** the barrier distributions of S,Ca + Zr are both wider and *** present results strongly indicate that neutron transfer plays an important role in the fusion processes.

关键词： fusion excitation function barrier distribution coupled-channels calculation

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THE STUDY OF LOOSELY BOUND EFFECT IN HEAVY-ION REACTIONS

Large-angle quasi-elastic scattering around the Coulomb barrier

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： JIA Hui-Ming~(1)) LIN Cheng-Jian ZHANG Huan-Qiao LIU Zu-Hua YU Ning YANG Feng JIA Fei Xu Xin-Xing Wu Zhen-Dong ZHANF Shi-Tao BAI Chun-Lin (Department of Nuclear Physics,China Institute of Atomic Energy(CIAE),Beijing 102413,China)

The research of the weakly bound nuclear reactions can be expected to afford important hints for the radioactive beam *** quasi-elastic scattering excitation function at a backward angle and elastic scattering angular distribution of Be+Pb near the Coulomb barrier were measured at *** results show a low energy shift in the quasi-elastic scattering barrier distribution and a breakup threshold anomaly（BTA） for optical potential,which can be mainly ascribed to the low breakup threshold of Be （1.67 MeV）.More elaborate results will be given in the presentation.

关键词： weakly bound nucleus excitation function barrier distribution breakup threshold anomaly

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Large-angle quasi-elastic scattering around the Coulomb barr...