Clustering in light nuclei in fragmentation above 1 A GeV

N. P. Andreeva; D. A. Artemenkov; V. Bradnova; M. M. Chernyavsky; A. Sh. Gaitinov; N. A. Kachalova; S. P. Kharlamov; A. D. Kovalenko; M. Haiduc; S. G. Gerasimov; L. A. Goncharova; V. G. Larionova; A. I. Malakhov; A. A. Moiseenko; G. I. Orlova; N. G. Peresadko; N. G. Polukhina; P. A. Rukoyatkin; V. V. Rusakova; V. R. Sarkisyan; T. V. Shchedrina; E. Stan; R. Stanoeva; I. Tsakov; S. Vokál; A. Vokálová; P. I. Zarubin; I. G. Zarubina

doi:10.1140/epja/i2006-08-045-2

2022 Impact factor 2.7

Hadrons and Nuclei

Open Access

Eur. Phys. J. A (2006) 27: 295-300
https://doi.org/10.1140/epja/i2006-08-045-2

Nuclear Physics in Astrophysics II

Clustering in light nuclei in fragmentation above 1 A GeV

N. P. Andreeva¹, D. A. Artemenkov², V. Bradnova², M. M. Chernyavsky³, A. Sh. Gaitinov¹, N. A. Kachalova², S. P. Kharlamov³, A. D. Kovalenko², M. Haiduc⁴, S. G. Gerasimov³, L. A. Goncharova³, V. G. Larionova³, A. I. Malakhov², A. A. Moiseenko⁵, G. I. Orlova³, N. G. Peresadko³, N. G. Polukhina³, P. A. Rukoyatkin², V. V. Rusakova², V. R. Sarkisyan⁵, T. V. Shchedrina², E. Stan²^,4, R. Stanoeva²^,6, I. Tsakov⁶, S. Vokál²^,7, A. Vokálová², P. I. Zarubin² and I. G. Zarubina²

¹ Institute for Physics and Technology, Almaty, Republic of Kazakhstan
² Joint Institute for Nuclear Research, Dubna, Russia
³ Lebedev Institute of Physics, Russian Academy of Sciences, Moscow, Russia
⁴ Institute of Space Sciences, Magurele, Romania
⁵ Yerevan Physics Institute, Yerevan, Armenia
⁶ Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
⁷ P.J. Safărik University, Kosice, Slovak Republic

Received: 20 June 2005
Accepted: 20 December 2005
Published online: 14 March 2006

Abstract

The relativistic invariant approach is applied to analyzing the 3.3 A GeV ²²Ne fragmentation in a nuclear track emulsion. New results on few-body dissociations have been obtained from the emulsion exposures to 2.1 A GeV ¹⁴N and 1.2 A GeV ⁹Be nuclei. It can be asserted that the use of the invariant approach is an effective means of obtaining conclusions about the behavior of systems involving a few He nuclei at a relative energy close to 1MeV per nucleon. The first observations of fragmentation of 1.2 A GeV ⁸B and ⁹C nuclei in emulsion are described. The presented results allow one to justify the development of few-body aspects of nuclear astrophysics.

PACS: 21.45.+v Few-body systems – / 23.60.+e α decay – / 25.10.+s Nuclear reactions involving few-nucleon systems –

© Società Italiana di Fisica and Springer-Verlag, 2006