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Search for decays of the $^{9}$B nucleus and Hoyle state in $^{14}$N nucleus dissociation

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 نشر من قبل Andrei Zaitsev
 تاريخ النشر 2020
  مجال البحث
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First results of an analysis to determine contribution of decays of the unstable $^{8}$Be and $^{9}$B nuclei and the Hoyle 3$alpha$-state to dissociation of $^{14}$N $to$ 3He (+H) are presented. As the research material, layers of nuclear track emulsion longitudinally exposed to 2.9 $A$ GeV/$c$ $^{14}$N nuclei with at the JINR Nuclotron. Under the assumption that the He and H fragments retain momentum per nucleon of the primary nucleus, these unstable states are identified by the invariant mass calculated from the emission angles of the fragments.



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