Starting from experimental studies on alpha-clustering in excited self-conjugate nuclei (from16O to28Si), temperature and density conditions for such a clustering are determined. Measured temperatures have been found in the range of 5.5–6.0 MeV, whereas density values of 0.3–0.4 times the saturation density are deduced, i.e., 0.046 to 0.062 fm−3 . Such a density domain is also predicted by constrained self-consistent mean field calculations. These results constitute a benchmark for alpha clustering from self-conjugate nuclei in relation to descriptions of stellar evolution and supernovae.
Temperature and density conditions for alpha clustering in excited self-conjugate nuclei
De Filippo E.;Geraci E.;Cardella G.;Lanzalone G.;Lombardo I.;Pagano A.;Papa M.;Pirrone S.;Rizzo F.;Russotto P.
2021-01-01
Abstract
Starting from experimental studies on alpha-clustering in excited self-conjugate nuclei (from16O to28Si), temperature and density conditions for such a clustering are determined. Measured temperatures have been found in the range of 5.5–6.0 MeV, whereas density values of 0.3–0.4 times the saturation density are deduced, i.e., 0.046 to 0.062 fm−3 . Such a density domain is also predicted by constrained self-consistent mean field calculations. These results constitute a benchmark for alpha clustering from self-conjugate nuclei in relation to descriptions of stellar evolution and supernovae.File in questo prodotto:
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