Dissociation of relativistic 10 B nuclei in nuclear track emulsion

The structural features of 10 B are studied by analyzing the dissociation of nuclei of this isotope at an energy of 1 A GeV in nuclear track emulsion. The fraction of the 10 B → 2He + H channel in the charge state distribution of fragments is 78%. It was determined based on the measurements of fragment emission angles that unstable 8 Be g.s. nuclei appear with a probability of (26 ± 4)%, and (14 ± 3)% of them are produced in decays of an unstable 9 B g.s. nucleus. The Be + H channel was suppressed to approximately 1%.