alpha-particle photoabsorption with a realistic nuclear force
Nuclear Theory
2008-11-26 v2
Abstract
The 4He total photoabsorption cross section is calculated with the realistic nucleon-nucleon potential Argonne V18 and the three-nucleon force (3NF) Urbana IX. Final state interaction is included rigorously via the Lorentz Integral Transform method. A rather pronounced giant resonance with peak cross sections of 3 (3.2) mb is obtained with (without) 3NF. Above 50 MeV strong 3NF effects, up to 35%, are present. Good agreement with experiment is found close to threshold. A comparison in the giant resonance region is inconclusive, since present data do not show a unique picture.
Cite
@article{arxiv.nucl-th/0512038,
title = {alpha-particle photoabsorption with a realistic nuclear force},
author = {D. Gazit and S. Bacca and N. Barnea and W. Leidemann and G. Orlandini},
journal= {arXiv preprint arXiv:nucl-th/0512038},
year = {2008}
}
Comments
13 pages, 4 figures; corrected experimental data in Fig.4b and slightly modified discussion of Fig.4b