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Candidates for the 5$alpha$ condensed state in ${}^{20}$Ne

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 نشر من قبل Satoshi Adachi
 تاريخ النشر 2020
  مجال البحث
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We conducted the coincidence measurement of $alpha$ particles inelastically scattered from ${}^{20}$Ne at $0^{circ}$ and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at $E_x$ = 23.6, 21.8, and 21.2 MeV in ${}^{20}$Ne are strongly coupled to a candidate for the 4$alpha$ condensed state in ${}^{16}$O. This result presents the first strong evidence that these states are the candidates for the 5$alpha$ condensed state.



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