Excitation functions have been measured for the dissipative products of 4≤Z≤12 in ^(19)F+^(45)Sc reaction from 102 to ^(108)MeV by a step of 300keV at θl=42°.The energy coherence widths have been extracted and...Excitation functions have been measured for the dissipative products of 4≤Z≤12 in ^(19)F+^(45)Sc reaction from 102 to ^(108)MeV by a step of 300keV at θl=42°.The energy coherence widths have been extracted and the dinuclear system lifetimes of the order of 10^(-21 ) s have been deduced by analysing the cross section Auctuations.展开更多
Excitation functions for projectile-like fragments from ^(19)F+^(51)V reaction have been measured at 102.25 to 109.50MeV in 250keV steps.A TOF+(ΔE-E)telescope atθ_(L)=21.7°is used to identify atomic number Z an...Excitation functions for projectile-like fragments from ^(19)F+^(51)V reaction have been measured at 102.25 to 109.50MeV in 250keV steps.A TOF+(ΔE-E)telescope atθ_(L)=21.7°is used to identify atomic number Z and mass number A of ejectiles simultaneously.Fluctuations of the dissipative cross section for a series of isotopes are observed.Their coherence energy widths are extracted by generalized statistical fluctuation analysis and the dependence on mass number and on N/Z values are observed for the first time.展开更多
The particle-particle(P-P)correlation functions are investigated in 46.7MeV/u^(12)C induced reactions,the correlation functions are greatly enhanced at q~20 MeV/c when the sum of the energies of two correlated protons...The particle-particle(P-P)correlation functions are investigated in 46.7MeV/u^(12)C induced reactions,the correlation functions are greatly enhanced at q~20 MeV/c when the sum of the energies of two correlated protons are high and almost independent on the targets.On the contrast,a strongly target dependent effect is observed for the P-P correlation functions when the sum energies are low.展开更多
基金Supported by the National Natural Science Foundation of China.
文摘Excitation functions have been measured for the dissipative products of 4≤Z≤12 in ^(19)F+^(45)Sc reaction from 102 to ^(108)MeV by a step of 300keV at θl=42°.The energy coherence widths have been extracted and the dinuclear system lifetimes of the order of 10^(-21 ) s have been deduced by analysing the cross section Auctuations.
基金Supported by the National Natural Science Foundation of China.
文摘Excitation functions for projectile-like fragments from ^(19)F+^(51)V reaction have been measured at 102.25 to 109.50MeV in 250keV steps.A TOF+(ΔE-E)telescope atθ_(L)=21.7°is used to identify atomic number Z and mass number A of ejectiles simultaneously.Fluctuations of the dissipative cross section for a series of isotopes are observed.Their coherence energy widths are extracted by generalized statistical fluctuation analysis and the dependence on mass number and on N/Z values are observed for the first time.
文摘The particle-particle(P-P)correlation functions are investigated in 46.7MeV/u^(12)C induced reactions,the correlation functions are greatly enhanced at q~20 MeV/c when the sum of the energies of two correlated protons are high and almost independent on the targets.On the contrast,a strongly target dependent effect is observed for the P-P correlation functions when the sum energies are low.
