典型文献
Dynamical fluctuations in fragmentation reactions in a Boltzmann-Langevin approach
文献摘要：
Based on the isospin-dependent Boltzmann-Langevin model,the dynamical fluctuations in the fragmentation reaction of 112Sn+112Sn are investigated.The quadrupole moment and octupole moment with zero magnetic quantum number have large fluctuations in the early time of the collisions.The dynamical fluctuations in momentum space show a strong dependence on the incident energy.The effects of using different fluctuations on the fragment cross sections are also studied in the fragmentation reactions.The results by using Q20+Q30 fluctuation have a better agreement with the experimental data.Calculations using Q20+Q30 fluctuation produce more proton-rich and neutron-rich nuclei than those using Q20 fluctuation only.Besides,the difference between the production cross sections of fragments calculated by using Q20 and Q20+Q30 fluctuations is larger in the vicinity of the projectile.These results present that the dynamical fluctuations may affect the whole dynamical process of fragmentation reactions including the production of fragments,due to the nonlinear nature of the Boltzmann-Langevin equation.
文献关键词：
中图分类号：
作者姓名：
Bing Li;Na Tang;Feng-Shou Zhang
作者机构：
Key Laboratory of Beam Technology of the Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Institute of Radiation Technology,Beijing Academy of Science and Technology,Beijing 100875,China;Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China
文献出处：
引用格式：
[1]Bing Li;Na Tang;Feng-Shou Zhang-.Dynamical fluctuations in fragmentation reactions in a Boltzmann-Langevin approach)[J].理论物理,2022(11):140-150
A类：
isospin,112Sn+112Sn,octupole,Q20+Q30
B类：
Dynamical,fluctuations,fragmentation,reactions,Boltzmann,Langevin,approach,Based,dependent,model,dynamical,are,investigated,quadrupole,zero,magnetic,quantum,number,have,early,collisions,momentum,space,show,strong,dependence,incident,energy,effects,using,different,cross,sections,also,studied,results,by,better,agreement,experimental,data,Calculations,produce,more,proton,rich,neutron,nuclei,than,those,only,Besides,difference,between,production,fragments,calculated,larger,vicinity,projectile,These,present,that,may,affect,whole,process,including,due,nonlinear,nature,equation
AB值：
0.468345
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