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

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.

Article materials were presented in the report by A.A. Zaitsev at LXX International conference Nucleus - 2020, https://indico.cern.ch/event/839985/contributions/3985257 To be published in journal "Physics of Particles and Nuclei"

References in corpus (3)

• Peripheral interactions of relativistic ${}^{14}$N nuclei with emulsion nuclei
• Unstable states in dissociation of relativistic nuclei. Recent findings and prospects of researches
• Dissociation of Relativistic ${}^{10}$B Nuclei in Nuclear Track Emulsion

Cited by in corpus (3)

• Highlights of Unstable States in Relativistic Dissociation of Light Nuclei in Nuclear Emulsion
• The ${}^8$Be nucleus and the Hoyle state in dissociation of relativistic nuclei
• Brief review on unstable states in dissociation of relativistic nuclei