Three-body halos.  V. Computations of continuum spectra for Borromean nuclei

A. Cobis, D. V. Fedorov, and A. S. Jensen
Phys. Rev. C 58, 1403 – Published 1 September 1998
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Abstract

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+α) for Jπ=0±,1±,2± and 11Li(n+n+9Li) for 12±, 32±, 52±. 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.

  • Received 20 January 1998

DOI:https://doi.org/10.1103/PhysRevC.58.1403

©1998 American Physical Society

Authors & Affiliations

A. Cobis, D. V. Fedorov, and A. S. Jensen

  • Institute of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark

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Issue

Vol. 58, Iss. 3 — September 1998

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