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Systematic investigation of the Hoyle-analog states in light nuclei

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arxiv 1806.03423 v1 pith:FUQ5TLKJ submitted 2018-06-09 nucl-th

classification nucl-th
keywords nucleistatesthree-clusterresonancecontinuumcriteriahoyle-analoglight
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abstract

We investigate resonance states in three-cluster continuum of some light nuclei $^{9}$Be, $^{9}$B, $^{10}$B, $^{11}$B and $^{11}$C. These nuclei are considered to have a three-cluster configuration consisting of two alpha-particles and neutron, proton, deuteron, triton and nucleus $^{3}$He. In this study, we make use two different microscopic three-cluster models. The first model employs the Hyperspherical Harmonics basis to numerate channels and describe three-cluster continuum. The second model is the well-known complex scaling method. The nucleon-nucleon interaction is modeled by the semi-realistic Minnesota and Hasegawa-Nagata potentials. Our main aim is to find the Hoyle-analog states in these nuclei or, in other words, whether it is possible to synthesize these nuclei in a triple collision of clusters. We formulate the criteria for selecting such states and apply them to resonance states, emerged from our calculations. We found that there are resonance states obeying the formulated criteria which make possible syntheses of these nuclei in a stellar environment.

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  1. On three-cluster resonance structure of hypernuclei $_{\Lambda}^{7}$He, $_{\Lambda}^{7}$Li and $_{\Lambda}^{7}$Be

    nucl-th 2026-08 conditional novelty 6.0 of 10

    A three-cluster model predicts many narrow and broad resonance states, including states with widths below 10 keV, in the hypernuclei 7ΛHe, 7ΛLi and 7ΛBe.

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