Abstract
Structure of weakly bound/unbound light nuclei is often related to the low-energy decay channels involving composite particles like deuteron or particle. These channels are essential to understand the appearance of light nuclei in the Big Bang nucleosynthesis or the helium fusion. We generalize the Gamow shell model (GSM) in coupled-channel (GSM-CC) representation to include reaction channels with the composite particles. In the core + valence particle formulation, this unified microscopic approach for structure and reactions involving weakly bound/unbound nuclei can be also applied to study low-energy properties of heavy nuclei. As the first application of this generalized GSM-CC approach, we describe the structure of and deuteron--particle elastic scattering using the same effective Furutani-Horiuchi-Tamagaki (FHT)-type nucleon-nucleon interaction. Asymptotically, the deuteron structure including its continuum is described using the chiral force. The bulk of the data, including low-energy spectrum of , asymptotic normalization coefficients, and angular differential cross sections are satisfactorily described.
- Received 20 November 2018
- Revised 4 February 2019
DOI:https://doi.org/10.1103/PhysRevC.99.044606
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