1998/04/23 by A. Cobis, D. V. Fedorov, A. S. Jensen · 4 citations
Physics and Astronomy · #Atomic and Molecular Physics #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.58.1403
published as Phys.Rev.C58:1403-1421,1998 · 35 pages, 14 figures
arxiv created 1998/04/23 · openalex publication_date 1998/09/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We solve the coordinate space Faddeev equations in the continuum. We employ hyperspherical coordinates and provide analytical expressions allowing easy computation of the effective potentials at distances much larger than the ranges of the interactions where only s waves in the different Jacobi coordinates couple. Realistic computations are carried out for the Borromean halo nuclei 6He (n+n+\ensuremathα) for J^\ensuremathπ=0^\ifmmode±\else\textpm\fi,1^\ifmmode±\else\textpm\fi,2^\ifmmode±\else\textpm\fi and 11Li (n+n+9Li) for (1)/(2)^\ifmmode±\else\textpm\fi, (3)/(2)^\ifmmode±\else\textpm\fi, (5)/(2)^\ifmmode±\else\textpm\fi. Ground state properties, strength functions, Coulomb dissociation cross sections, phase shifts, and complex S-matrix poles are computed and compared to available experimental data. We find enhancements of the strength functions at low energies and a number of low-lying S-matrix poles.