Amplitudes for φ（2S） sequential decays into 2（π^＋π^-）pp^-γ via XCJ are constructed in effective coupling scheme. A Mote-Carlo simulation is carried out to study angular distributions of the decayed particles ...Amplitudes for φ（2S） sequential decays into 2（π^＋π^-）pp^-γ via XCJ are constructed in effective coupling scheme. A Mote-Carlo simulation is carried out to study angular distributions of the decayed particles in laboratory system. The results can be taken as a reference for measuring the decay of XCJ into at BESⅡ/BEPC in the near future.展开更多
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
基金the National Natural Science Foundation of China under
文摘Amplitudes for φ（2S） sequential decays into 2（π^＋π^-）pp^-γ via XCJ are constructed in effective coupling scheme. A Mote-Carlo simulation is carried out to study angular distributions of the decayed particles in laboratory system. The results can be taken as a reference for measuring the decay of XCJ into at BESⅡ/BEPC in the near future.
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.
