Nucleon-deuteron capture with chiral potentials
Abstract
Present day chiral nucleon-nucleon potentials up to N3LO and three nucleon forces at N2LO are used to analyze nucleon-deuteron radiative capture at deuteron lab energies below E_d= 100 MeV. The differential cross section and the deuteron analyzing powers A_y(d) and A_{yy} are presented and compared to data. The theoretical predictions are obtained in the momentum-space Faddeev approach using the nuclear electromagnetic current operator with exchange currents introduced via the Siegert theorem. The chiral forces provide the same quality of data description as a combination of the two-nucleon AV18 and the three-nucleon Urbana IX interactions. However, the different parametrizations of the chiral potentials lead to broad bands of predictions.
Cite
@article{arxiv.nucl-th/0606021,
title = {Nucleon-deuteron capture with chiral potentials},
author = {R. Skibinski and J. Golak and H. Witala and W. Gloeckle and A. Nogga and E. Epelbaum},
journal= {arXiv preprint arXiv:nucl-th/0606021},
year = {2007}
}
Comments
20 pages, 12 ps figures