An experiment was conducted for studying the cluster structure of Be induced by He ions at an energy of 30 MeV.As results of the nuclear reaction^(3)He+^(9)Be,the differential cross sections for the exit channels–ela...An experiment was conducted for studying the cluster structure of Be induced by He ions at an energy of 30 MeV.As results of the nuclear reaction^(3)He+^(9)Be,the differential cross sections for the exit channels–elastic,inelastic,α+^(8)Be,^(6)He+^(6)Be,^(6)Li+^(6)Li,and^(7)Be+^(5)He–were measured.Elastic and inelastic scattering data were treated within both the optical model and coupled channel method.A new set of optical potentials was considered for the elastic scattering.The deformation parameter was established for the transition 3/2→5/2.Cluster transfer reactions were analyzed via the coupled reaction channel method.The nuclear reactions with the exit channels^(6)He+^(6)Be,^(6)Li+^(6)Li,and^(7)Be+^(5)He were complemented by two-step transfer mechanisms.The contribution of each reaction mechanism were shown and compared with the findings of other authors.展开更多
This paper presents the results of experiments conducted to measure the cross-sections for elastic scattering and nucleon transfer channels in the ^(6)Li+^(9)Be reaction at an incident energy of 68 MeV:^(9)Be(^(6)Li,^...This paper presents the results of experiments conducted to measure the cross-sections for elastic scattering and nucleon transfer channels in the ^(6)Li+^(9)Be reaction at an incident energy of 68 MeV:^(9)Be(^(6)Li,^(6)Li)^(9)Be,^(9)Be(^(6)Li,7Li)8Be,^(9)Be(^(6)Li,7Li)^(8)Be_(2+),^(9)Be(^(6)Li,^(8)Li)^(7)Be,and ^(9)Be(^(6)Li,^(7)Be)^(8)Li.The objective of the study is to elucidate the manifestation of the cluster structure of ^(9)Be.Theoretical analysis of the contributions of the one-step and two-step neutron transfer mechanisms is performed using the distorted wave Born approximation method with the Fresco code.Good agreement between the calculations and the experimental data is obtained for the channels of elastic scattering ^(9)Be(^(6)Li,^(6)Li)^(9)Be,neutron ^(9)Be(^(6)Li,^(7)Li)^(8)Be,and proton transfer ^(9)Be(^(6)Li,^(7)Be)^(8)Li,as well as for the transfer of two neutrons ^(9)Be(^(6)Li,^(8)Li)^(7)Be.The dineutron cluster transfer mechanism makes a dominant contribution to the ^(9)Be(^(6)Li,^(8)Li)^(7)Be reaction channel at forward angles.展开更多
基金Supported by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan(AP14870958)。
文摘An experiment was conducted for studying the cluster structure of Be induced by He ions at an energy of 30 MeV.As results of the nuclear reaction^(3)He+^(9)Be,the differential cross sections for the exit channels–elastic,inelastic,α+^(8)Be,^(6)He+^(6)Be,^(6)Li+^(6)Li,and^(7)Be+^(5)He–were measured.Elastic and inelastic scattering data were treated within both the optical model and coupled channel method.A new set of optical potentials was considered for the elastic scattering.The deformation parameter was established for the transition 3/2→5/2.Cluster transfer reactions were analyzed via the coupled reaction channel method.The nuclear reactions with the exit channels^(6)He+^(6)Be,^(6)Li+^(6)Li,and^(7)Be+^(5)He were complemented by two-step transfer mechanisms.The contribution of each reaction mechanism were shown and compared with the findings of other authors.
基金Supported by the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (AP19677087)by the Russian Science Foundation (24-22-00117)。
文摘This paper presents the results of experiments conducted to measure the cross-sections for elastic scattering and nucleon transfer channels in the ^(6)Li+^(9)Be reaction at an incident energy of 68 MeV:^(9)Be(^(6)Li,^(6)Li)^(9)Be,^(9)Be(^(6)Li,7Li)8Be,^(9)Be(^(6)Li,7Li)^(8)Be_(2+),^(9)Be(^(6)Li,^(8)Li)^(7)Be,and ^(9)Be(^(6)Li,^(7)Be)^(8)Li.The objective of the study is to elucidate the manifestation of the cluster structure of ^(9)Be.Theoretical analysis of the contributions of the one-step and two-step neutron transfer mechanisms is performed using the distorted wave Born approximation method with the Fresco code.Good agreement between the calculations and the experimental data is obtained for the channels of elastic scattering ^(9)Be(^(6)Li,^(6)Li)^(9)Be,neutron ^(9)Be(^(6)Li,^(7)Li)^(8)Be,and proton transfer ^(9)Be(^(6)Li,^(7)Be)^(8)Li,as well as for the transfer of two neutrons ^(9)Be(^(6)Li,^(8)Li)^(7)Be.The dineutron cluster transfer mechanism makes a dominant contribution to the ^(9)Be(^(6)Li,^(8)Li)^(7)Be reaction channel at forward angles.
