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Correlation in formation of 8Be nuclei and α-particles in fragmentation of relativistic nuclei
Physics Letters B ( IF 4.4 ) Pub Date : 2021-07-01 , DOI: 10.1016/j.physletb.2021.136460
A.A. Zaitsev , D.A. Artemenkov , V.V. Glagolev , M.M. Chernyavsky , N.G. Peresadko , V.V. Rusakova , P.I. Zarubin

In the events of peripheral dissociation of relativistic nuclei in the nuclear track emulsion, it is possible to study the emerging ensembles of He and H nuclei, including those from decays of unstable 8Be and 9B nuclei, as well as the Hoyle state. These extremely short-lived states are identified by invariant masses calculated from the angles in 2α-pairs, 2αp- and 3α-triplets in the approximation of conservation of momentum per nucleon of the primary nucleus. In the same approach, it is possible to search for more complex states. This paper explores the correlation between the formation of 8Be nuclei and the multiplicity of accompanying α-particles in the dissociation of relativistic 16O, 22Ne, 28Si, and 197Au nuclei. On the above basis, estimates of this correlation are presented for the unstable 9B nucleus and the Hoyle state. The enhancement in the 8Be contribution to dissociation with the α-particle multiplicity has been found. Decays of 9B nuclei and Hoyle states follow the same trend.



中文翻译:

相对论原子核碎裂中8个Be原子核与α粒子形成的相关性

在核径迹乳液中相对论性核的外围解离事件中,可以研究 He 和 H 核的新兴集合,包括来自不稳定8 Be 和9 B 核衰变的集合,以及霍伊尔态。这些极其短暂的状态由从角度在2个计算不变群众识别α -pairs,2 αP和3 - α养护的每一次核的核子动量的近似-triplets。在相同的方法中,可以搜索更复杂的状态。本文探讨了8个Be核的形成与伴随α的多重性之间的相关性- 相对论16 O、22 Ne、28 Si 和197 Au 核解离中的粒子。在上述基础上,对不稳定的9 B 核和霍伊尔态提出了这种相关性的估计。已经发现8 Be 对解离的增强与α粒子的多样性有关。9 B 原子核和霍伊尔态的衰变遵循相同的趋势。

更新日期:2021-07-14
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