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Alpha-induced reaction cross-section for Sm, U, Np targets： influence of hexadecapole deformation and deformed surface diffuseness

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Chinese Physics C 2017年第6期41卷 85-92页

作者： S.A.Alavi V.Dehghani Department of Physics University of Sistan and Baluchestan Zahedan 98135-674 Iran

Alpha-induced reactions on 154^Sm,233,235,236,238^U, and 237^Np deformed nuclei are studied *** effects of hexadecapole deformation, deformed surface diffuseness parameter, and orientation on barrier height and position, fusion cross-section at any angle, and fusion cross-section have been investigated. Both hexadecapole deformation and deformed surface diffuseness can affect barrier characteristics and enhance fusion cross-section. Good agreement between experimental data and theoretical calculations with quadrupole and hexadecapole deformation and deformed surface diffuseness were observed for the 4^He＋^154^Sm,235^U,237^Np reactions.

关键词： nuclear potential fusion cross section deformation alpha induced reaction.

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Studies of the 2α and 3α channels of the ^(12)C+^(12)C reaction in the range of E_(c.m.)=8.9 MeV to 21 MeV using the active target Time Projection Chamber

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Chinese Physics C 2022年第10期46卷 116-125页

作者：王新雨张宁涛张志超鲁辰桂蒲天磊张金龙段利敏高丙水李阔昂李宇田千奕茹龙辉王兵徐晓栋赵红赟林炜平蔡紫葳姬彬斐李奇特许金艳唐晓东 Joint department for nuclear physics Institute of Modern Physics and Lanzhou UniversityChinese Academy of SciencesLanzhou 730000China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China

The ^(12)C+^(12)C fusion reaction was studied in the range of E_(c.m.)=8.9 to 21 MeV using the active-target Time Projection *** full information on all tracks of the reaction products,cross sections of the^(12)C(^(12)C,^(8)Be)^(16)O_(g.s.)channel and the ^(12)C(^(12)C,3a)^(12)C channel could be measured down to the level of a few *** ^(12)C(^(12)C,^(8)Be)^(16)O_(g.s.)reaction channel was determined to be 10_(-8)^(+24) mb at E_(c.m.)=11.1 MeV,supporting the direct a transfer reaction *** ^(12)C(^(12)C,3α)^(12)C reaction channel was studied for the first time using an exclusive *** result does not confirm the anomaly behavior reported in the previous inclusive measurement by Kolata et al.[***.C 21,579(1980)].Our comparisons with statistical model calculations suggest that the 3 a channel is dominated by the fusion evaporation process at E_(c.m.)>19 *** additional contribution of the 3 a channel increases the fusion reaction cross section by 10% at energies above 20 *** also find that an additional reaction mechanism is needed to explain the measured cross section at E_(c.m.)<15 MeV at which point the statistical model prediction vanishes.

关键词： fusion cross section Coulomb barrier Time Projection Chamber active target

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Probing the equation of state(EOS) by deep sub-barrier fusion reactions

Probing the equation of state(EOS) by deep sub-barrier fusio...

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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： Hao Hong-Jun~(1 1)) Tian Jun-Long~(1 2)) 1(College of Physics and Electrical Engineering,Anyang Normal University,Anyang,Henan 455000,China)

The Skyrme energy-density functional together with the extended semi-classical Thomas-Fermi method is applied to the study of heavy-ion fusion reactions at deep sub-barrier *** relation between heavy-ion fusion reactions at deep sub-barrier energy and the equation of state(EOS) of nuclear matter is further probed by selecting different sets of Skyrme force parameters to reproduce the experimental excitation functions.

关键词： Skyrme energy-density functional entrance channel potential fusion cross section

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