We report the equation of state(EOS) of pure neutron matter(PNM) and neutron-rich matter(NRM) for the realistic Urbana V 14 two nucleon interaction,obtained by using a Variational Monte Carlo(VMC) method.Also,many bod...We report the equation of state(EOS) of pure neutron matter(PNM) and neutron-rich matter(NRM) for the realistic Urbana V 14 two nucleon interaction,obtained by using a Variational Monte Carlo(VMC) method.Also,many body interactions are included as a phenomenological density dependent term in the potential.The binding energy per nucleon is calculated for different densities and various isospin asymmetry parameters.Our results on NRM and PNM are compared with relativistic Brueckner-Hartree-Fock theory and relativistic Hartree-Fock model with the unitary correlation operator method.The results obtained in this study show reasonable agreement with both of these relativistic Hartree-Fock approaches.We also compare the binding energies obtained in this study with those obtained by various authors employing different methods and techniques.展开更多
基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HF...基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HFB和裂变动力学计算的TDHFB两部分.在(x,y)方向采用形变谐振子基.在z方向上,为了描述裂变直至断点和断后的极端形变,采用Lagrange mesh方法.利用本程序,对240Pu的裂变势能路径和断点动力学过程进行了计算.结果表明,240Pu存在对称和非对称两条裂变路径;三轴形变可以显著降低第一(内)裂变位垒;对能在断裂过程中起着重要作用.展开更多
文摘We report the equation of state(EOS) of pure neutron matter(PNM) and neutron-rich matter(NRM) for the realistic Urbana V 14 two nucleon interaction,obtained by using a Variational Monte Carlo(VMC) method.Also,many body interactions are included as a phenomenological density dependent term in the potential.The binding energy per nucleon is calculated for different densities and various isospin asymmetry parameters.Our results on NRM and PNM are compared with relativistic Brueckner-Hartree-Fock theory and relativistic Hartree-Fock model with the unitary correlation operator method.The results obtained in this study show reasonable agreement with both of these relativistic Hartree-Fock approaches.We also compare the binding energies obtained in this study with those obtained by various authors employing different methods and techniques.
文摘基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HFB和裂变动力学计算的TDHFB两部分.在(x,y)方向采用形变谐振子基.在z方向上,为了描述裂变直至断点和断后的极端形变,采用Lagrange mesh方法.利用本程序,对240Pu的裂变势能路径和断点动力学过程进行了计算.结果表明,240Pu存在对称和非对称两条裂变路径;三轴形变可以显著降低第一(内)裂变位垒;对能在断裂过程中起着重要作用.
