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arXiv · 2011.06265

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

E. Mitsova·A. A. Zaitsev·D. A. Aretemenkov·N. K. Kornegrutsa·V. V. Rusakova·R. Stanoeva·P. I. Zarubin·I. G. Zarubina
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Abstract

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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E. Mitsova, A. A. Zaitsev, D. A. Aretemenkov, N. K. Kornegrutsa, V. V. Rusakova, R. Stanoeva, P. I. Zarubin, I. G. Zarubina. 2020-11-12. Search for decays of the $^{9}$B nucleus and Hoyle state in $^{14}$N nucleus dissociation. https://doi.org/10.1134/s1063779622020575

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