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The ambiguity of the structure of ~(12)Be especially in the configuration of Be ground state has attracted a lot of attention recently.We notice that the nuclear reaction cross section or at low energy region is sensitive to the surface structure of ~(12)Be,which is greatly impacted by the ground state configuration of ~(12)Be especially by the occupancy probability of the s orbital component.By using existed interaction cross section data of ~(12)Be on C at 790 MeV/nucleon and Glauber model,the upper limit of the s orbital occupation probability of ~(12)Be ground state is roughly determined to be about 56%with Single Particle Model calculations.This demonstrates that the method is very promising to determine the s orbital component of ~(12)Be with proper nuclear-matter density distribution calculations for different orbitals of ~(12)Be ground state.Hence we bring forward to determine the s orbital component of ~(12)Be by measuring the ctr of ~(12)Be on C and Al at several tens of MeV/nucleon.In this paper,the feasibility and detailed experimental scheme of the ctr measurement are carefully studied.The precision of the s orbital occupation probability of ~(12)Be ground state is expected to achieve 9%by using the proposed 2%ctr data.
The ambiguity of the structure of ~ (12) Be especially in the configuration of Be ground state has attracted a lot of attention recently. We notice that the nuclear reaction cross section or at low energy region is sensitive to the surface structure of ~ (12 ) Be, which is greatly impacted by the ground state configuration of ~ (12) Be especially by the occupancy probability of the orbital component. BY using interaction interaction cross section data of ~ 12 on C at 790 MeV / nucleon and Glauber model, the upper limit of the orbital occupation probability of ~ (12) Be ground state is roughly determined to be about 56% with Single Particle Model calculations. This demonstrates that the method is very promising to determine the orbital component of ~ (12) Be with proper nuclear-matter density distribution calculations for different orbitals of ~ (12) Be ground state .ence we bring forward to determine the s orbital component of ~ (12) Be by measuring the ctr of ~ (12) Be on C and Al at several tens of MeV / nucleon.In this paper, the feasibility and detailed experimental scheme of the ctr measurement are carefully studied. precision of the orbital occupation probability of ~ (12) Be ground state is expected to achieve 9% by using the proposed 2% ctr data .