Fragmentation of relativistic nuclei in peripheral interactions in nuclear track emulsion

• Published in: Physics of atomic nuclei 2008-09, Vol.71 (9), p.1565-1571
• Main Authors: Artemenkov, D. A., Bradnova, V., Chernyavsky, M. M., Goncharova, L. A., Haiduc, M., Kachalova, N. A., Kharlamov, S. P., Kovalenko, A. D., Malakhov, A. I., Moiseenko, A. A., Orlova, G. I., Peresadko, N. G., Polukhina, N. G., Rukoyatkin, P. A., Rusakova, V. V., Sarkisyan, V. R., Stanoeva, R., Shchedrina, T. V., Vokál, S., Vokálová, A., Zarubin, P. I., Zarubina, I. G.
• Format: Article
• Language: English
• Subjects: ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; ASTROPHYSICS; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BARYONS; BERYLLIUM 8; BERYLLIUM 9; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORON 8; BORON ISOTOPES; COLLOIDS; DECAY; DISPERSIONS; DISSOCIATION; DWARF STARS; ELEMENTARY PARTICLES; Elementary Particles and Fields; EMULSIONS; ENERGY RANGE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; FRAGMENTATION; HADRONS; HEAVY NUCLEI; HELIUM 3; HELIUM 5; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MANY-BODY PROBLEM; MILLISECONDS LIVING RADIOISOTOPES; NEON 22; NEON ISOTOPES; NITROGEN 14; NITROGEN ISOTOPES; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; Particle and Nuclear Physics; PARTICLE DECAY; PARTICLE TRACKS; PHYSICS; Physics and Astronomy; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTONS; RADIOISOTOPES; RELATIVISTIC RANGE; STABLE ISOTOPES; STARS; WHITE DWARF STARS
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S1063778808090111

The technique of nuclear track emulsions is used to explore the fragmentation of light relativistic nuclei down to the most peripheral interactions: nuclear “white” stars. A complete pattern of the relativistic dissociation of a 8B nucleus with target fragment accompaniment is presented. Relativistic dissociation 9 Be → 2 α is explored using significant statistics, and a relative contribution of 8 Be decays from 0+ and 2+ states is established. Target fragment accompaniments are shown for relativistic fragmentation 14 N → 3He +H and 22 Ne → 5He. The leading role of the electromagnetic dissociation on heavy nuclei with respect to breakups on target protons is demonstrated in all these cases. It is possible to conclude that the peripheral dissociation of relativistic nuclei in nuclear track emulsion is a unique tool to study many-body systems composed of the lightest nuclei and nucleons in the energy scale relevant for nuclear astrophysics.