1994/02/15 by K. Varga, Y. Suzuki, Y. Ohbayasi · 7 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Nuclear physics research studies #Quantum, superfluid, helium dynamics #nucl-th
paper · pdf · doi:10.1103/physrevc.50.189
published as Phys.Rev.C50:189-195,1994 · Revtex, Submitted to Phys. Rev. C, 11 pages, 8 figures available upon request, ATOMKI-1994-1
arxiv created 1994/02/15 · openalex publication_date 1994/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The neutron halo structure of 6He and of 8He is studied in a microscopic three-body and five-body model, respectively. Various cluster arrangements are included to embody a variety of correlations between the clusters. The intercluster wave function is determined with the stochastic variational method. The 6He and 8He energies are reproduced with the same effective force very well. The radii and densities are compared with the results of empirical analyses. The calculated difference of the neutron and proton radii exceeds 0.8 fm, confirming the thick neutron skin. The two-neutron removal spectroscopic amplitudes are calculated and used for evaluating the momentum distribution and the \ensuremathβ decay spectrum, which are sensitive to the halo structure. A fair agreement with experiment is obtained.