An enhancement of formation of unstable $^{8}$Be nucleus with the growth of $α$-particle multiplicity in fragmentation of relativistic nuclei

A. A. Zaitsev; P. I. Zarubin; N. G. Peresadko

doi:10.1134/s1063778821090386

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arXiv · 2207.13568

An enhancement of formation of unstable $^{8}$Be nucleus with the growth of $α$-particle multiplicity in fragmentation of relativistic nuclei

A. A. Zaitsev·P. I. Zarubin·N. G. Peresadko

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Abstract

In this paper, the correlation between the formation of the unstable $^{8}$Be nucleus and accompanying $α$ particles in the fragmentation of relativistic $^{16}$O, $^{22}$Ne, $^{28}$Si, and $^{197}$Au nuclei in a nuclear track emulsion is investigated. The $^{8}$Be decays are identified in a wide energy range by invariant masses calculated from 2$α$-pair opening angles. The adopted approximations are verified by data on fragmentation of $^{16}$O nuclei in a hydrogen bubble chamber in a magnetic field. An increase in the $^{8}$Be contribution to the dissociation with the growth of $α$-particle multiplicity is found.

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A. A. Zaitsev, P. I. Zarubin, N. G. Peresadko. 2022-07-27. An enhancement of formation of unstable $^{8}$Be nucleus with the growth of $α$-particle multiplicity in fragmentation of relativistic nuclei. https://doi.org/10.1134/s1063778821090386

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