Energy distributions from three-body decaying many-body resonances

Date
Authors
Alvarez-Rodriguez, R.
Jensen, A. S.
Fedorov, D. V.
Fynbo, H. O. U.
Garrido, E.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We compute energy distributions of three particles emerging from decaying many-body resonances. We reproduce the measured energy distributions from decays of two archetypal states chosen as the lowest $0^{+}$ and $1^{+}$-resonances in $^{12}$C populated in $\beta$-decays. These states are dominated by sequential, through the $^{8}$Be ground state, and direct decays, respectively. These decay mechanisms are reflected in the ``dynamic'' evolution from small, cluster or shell-model states, to large distances, where the coordinate or momentum space continuum wavefunctions are accurately computed.
Comment: 4 pages, 4 figures. Accepted for publication in Physical Review Letters
Keywords
Nuclear Theory
Citation
Collections