Using the most recent phase shift data for pp,nn,and np elastic scattering for different states (l=0,1,...) in the energy range of i MeV to 350 MeV,the charge dependency of the strong nuclear force is investigated.Our...Using the most recent phase shift data for pp,nn,and np elastic scattering for different states (l=0,1,...) in the energy range of i MeV to 350 MeV,the charge dependency of the strong nuclear force is investigated.Our results indicate that although the charge independency holds in most of the energy range,such charge independency is broken in the particular energy range of 120 MeV to 200 MeV for all partial wave states considered here.展开更多
Based on the α-particle model of ^12C nucleus, the differential cross sections for α-^12C elastic scattering at incident energy of 4.2 GeV have been calculated within the framework of Glauber multiple scattering the...Based on the α-particle model of ^12C nucleus, the differential cross sections for α-^12C elastic scattering at incident energy of 4.2 GeV have been calculated within the framework of Glauber multiple scattering theory. The results show that the main features of the measured angular distribution of the cross sections can be reasonably described. The parameterized α-α scattering amplitude, which is the basic input to construct the α-^12 C scattering Glauber amplitude in the a-particle model, is obtained by fitting the α-α scattering data.展开更多
We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for th...We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for this Padé analysis are discussed.展开更多
Relativistic mean-field theory and phase-shift analysis are combined together to investigate the elasticCoulomb scattering between electrons and unstable nuclei.Electron scattering at several different energies is stu...Relativistic mean-field theory and phase-shift analysis are combined together to investigate the elasticCoulomb scattering between electrons and unstable nuclei.Electron scattering at several different energies is studiedand compared,in order to see the energy dependence of electron-nucleus scattering.It is shown that electron scattering at200 MeV or 300 MeV can be used to reveal electron-nucleus scattering information around the first diffraction minimum-Shiftsin opposite directions are obtained for the first diffraction minima of the electron scattering off the ground andfirst excited states of ^(17)F with ^(16)O as reference,and similar effects are obtained for ^(18)Ne.Besides,some neutron-richN = 8 isotones are also studied.Results show that electron scattering will be very useful and important in studyingboth proton- and neutron-rich nuclei in the future.展开更多
文摘Using the most recent phase shift data for pp,nn,and np elastic scattering for different states (l=0,1,...) in the energy range of i MeV to 350 MeV,the charge dependency of the strong nuclear force is investigated.Our results indicate that although the charge independency holds in most of the energy range,such charge independency is broken in the particular energy range of 120 MeV to 200 MeV for all partial wave states considered here.
基金National Natural Science Foundation of China under Grant No.10465001
文摘Based on the α-particle model of ^12C nucleus, the differential cross sections for α-^12C elastic scattering at incident energy of 4.2 GeV have been calculated within the framework of Glauber multiple scattering theory. The results show that the main features of the measured angular distribution of the cross sections can be reasonably described. The parameterized α-α scattering amplitude, which is the basic input to construct the α-^12 C scattering Glauber amplitude in the a-particle model, is obtained by fitting the α-α scattering data.
基金The project supported in part by National Natural Science Foundation of China under Grant No. 10205004 .Acknowledgments The authors are grateful to Dr. E. Epelbaum for helpful communications. J.F. Yang is grateful to Prof. B.A. Kniehl for his hospitality at the II. Institute for Theoretical Physics of Hamburg University where part of this work was done.
文摘We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for this Padé analysis are discussed.
基金Supported by the National Natural Science Foundation of China under Grant Nos.10535010,10675090,10775068,and 10975072the 973 National Major State Basic Research and Development of China under Grant No.2007CB815004+1 种基金CAS Knowledge Innovation Project KJCX2-SW-N02the Research Fund of Doctoral Point (RFDP) under Grant No.20070284016
文摘Relativistic mean-field theory and phase-shift analysis are combined together to investigate the elasticCoulomb scattering between electrons and unstable nuclei.Electron scattering at several different energies is studiedand compared,in order to see the energy dependence of electron-nucleus scattering.It is shown that electron scattering at200 MeV or 300 MeV can be used to reveal electron-nucleus scattering information around the first diffraction minimum-Shiftsin opposite directions are obtained for the first diffraction minima of the electron scattering off the ground andfirst excited states of ^(17)F with ^(16)O as reference,and similar effects are obtained for ^(18)Ne.Besides,some neutron-richN = 8 isotones are also studied.Results show that electron scattering will be very useful and important in studyingboth proton- and neutron-rich nuclei in the future.
