Ground-state proton decay of 69Br and implications for the rp-process 68Se waiting-point
Nuclear Experiment
2011-09-30 v1
Abstract
The first direct measurement of the proton separation energy, Sp, for the proton-unbound nucleus 69Br is reported. Of interest is the exponential dependence of the 2p-capture rate on Sp which can bypass the 68Se waiting-point in the astrophysical rp process. An analysis of the observed proton decay spectrum is given in terms of the 69Se mirror nucleus and the influence of Sp is explored within the context of a single-zone X-ray burst model.
Cite
@article{arxiv.1009.2950,
title = {Ground-state proton decay of 69Br and implications for the rp-process 68Se waiting-point},
author = {A M Rogers and W G Lynch and M A Famiano and M S Wallace and F Amorini and D Bazin and R J Charity and F Delaunay and R T de Souza and J Elson and A Gade and D Galaviz and S Hudan and J Lee and S Lobostov and S Lukyanov and M Matos and M Mocko and M B Tsang and D Shapira and L G Sobotka and G Verde},
journal= {arXiv preprint arXiv:1009.2950},
year = {2011}
}
Comments
6 pages, 6 figures, INPC 2010 conference proceedings