Dedication. The manuscript is devoted to the eightieth anniversary of the famous Russian physicist Leonid Blokhintsev.
The 7Li (n,γ)8Li radiative capture at astrophysical energies†
Article first published online: 19 NOV 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Annalen der Physik
Volume 524, Issue 12, pages 850–861, December 2012
How to Cite
Dubovichenko, S.B. and Dzhazairov-Kakhramanov, A.V. (2012), The 7Li (n,γ)8Li radiative capture at astrophysical energies. Ann. Phys., 524: 850–861. doi: 10.1002/andp.201200151
- Issue published online: 10 DEC 2012
- Article first published online: 19 NOV 2012
- Manuscript Accepted: 25 OCT 2012
- Manuscript Revised: 23 OCT 2012
- Manuscript Received: 19 JUN 2012
- Neutron radiative capture process;
- primordial nucleosynthesis;
- nuclear astrophysics;
- cross sections;
- cluster model;
- phase shifts.
The possibility to construct intercluster interaction potentials in continuous and discrete spectra is shown in one-channel cluster model based on the classification of orbital states according to Young schemes. These potentials usually contain Pauli forbidden states, and correctly describe elastic scattering phase shifts taking into account resonance behavior and main characteristics of the bound states of nuclei in the considering cluster channel. The versions of intercluster interaction potentials describing the resonance nature of some phase shifts of the n7Li elastic scattering at low energies and the P2 ground state of 8Li in the n7Li cluster channel have been constructed for the demonstration of this approach. The possibility of describing the total cross sections of 7Li (n,γ)8Li within the energies from 5 meV (5 · 10-3 eV) to 1 MeV, including resonance at 0.25 MeV, has been demonstrated for the potentials obtained in the potential cluster model with forbidden states.