国家自然科学基金(10405007)

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System size effects on probing nuclear dissipation with neutrons
《Chinese Physics C》2010年第5期551-554,共4页吴锋 叶巍 
Supported by National Natural Science Foundation of China (10405007);Scientific Research Foundation of the Ministry of Education of China for Returned Overseas Scholars
Using a dynamical Langevin equation coupled with a statistical decay model, we calculate the excess of the pre-scission neutron multiplicities over its standard statistical-model values as a function of the nuclear di...
关键词：system size effects neutron multiplicity nuclear dissipation 
Surveying post-saddle nuclear dissipation with protons and α particles as probes
《Chinese Physics C》2010年第1期45-48,共4页叶巍 
Supported by National Nature Science Foundation of China (10405007);Scientific Research Foundation of the Ministry of Education of China for Returned Overseas Scholars
Using a Langevin model, we calculate post-saddle proton and α-particle multiplicities as a function of the post-saddle dissipation strength （β） for the heavy systems 234Cf, 240Cf, 246Cf and 240U. We find that, wit...
关键词：nuclear dissipation light charged-particle multiplicity isospin effect 
Surveying the role of excitation energy in probing nuclear dissipation
《Chinese Physics C》2009年第7期528-531,共4页叶巍 
Supported by National Natural Science Foundation of China (10405007)
A dynamical Langevin model is employed to calculate the excess of the evaporation residue cross sections of the ^194Pb nucleus over that predicted by the standard statistical model as a function of nuclear dissipation...
关键词：nuclear dissipation excitation energy evaporation residue cross section Langevin equation 
Langevin study of neutron emission in the reactions ^(16)O+^(181)Ta and ^(19)F+^(178)Hf
《Chinese Physics C》2008年第10期816-819,共4页叶巍 吴锋 杨宏伟 
National Natural Science Foundation of China (10405007)
The pre-scission neutrons measured in the reactions ^16O＋^181Ta and ^19F＋^178Hf are studied via a Langevin equation coupled with a statistical decay model. We find that because of the mass asymmetry of different ent...
关键词：pre-scission neutron multiplicity entrance channel mass asymmetry compound nucleus spin distribution Langevin equation 
Influence of angular momentum on evaporation residue cross section as a probe of nuclear dissipation
《Chinese Physics C》2008年第6期433-436,共4页叶巍 吴锋 
National Natural Science Foundation of China(10405007)
By calculating the excess of the evaporation residue cross sections of the ^200Pb nucleus over that predicted by the standard statistical model as a function of nuclear viscosity coefficient using a Langevin equation ...
关键词：nuclear dissipation evaporation residue cross section angular momentum Langevin equation 
Spin distribution of evaporation residue cross section within a stochastic approach
《Chinese Physics C》2008年第3期182-185,共4页杨宏伟 叶巍 
Supported by National Natural Science Foundation of China(10405007)
The Langevin equation including particle emission was used to reproduce the recently measured spin distribution of evaporation residue cross sections in the reaction ^16O＋^184W at beam energies of 84, 92, 100, 108, 1...
关键词：spin distribution of evaporation residue cross section pre-saddle viscosity coefficient Langevinequation 
Effects of N/Z on survival probability of heavy nuclei
《Chinese Physics C》2008年第1期49-51,共3页叶巍 杨宏伟 
Supported by National Natural Science Foundation of China(10405007)
The excitation functions of the evaporation residue formation probability of three heavy nuclei ^194pb, ^200Pb and ^206pb are calculated by using a Langevin equation coupled with a statistical decay model. The results...
关键词：N/Z effect survival probability pre-saddle particle multiplicity Langevin equation 
核耗散强度对角动量的可能依赖性(英文)
《高能物理与核物理》2006年第8期759-760,共2页叶巍 
国家自然科学基金(10405007)东南大学优秀青年教师教学科研资助计划资助~~
对130MeV3He+natAg→110,112In和890以及714MeV 84Kr+27Al→111In反应中的核耗散行为进行了一个比较分析．数据分析建议除了已知的温度和／或形变依赖性以外,核耗散强度可能对角动量也存在一定的依赖性．
关键词：核耗散强度 角动量 轻裂变系统 
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