2005/10/31 by T. Rauscher · 7 citations
Chemistry · Mathematics · Physics and Astronomy · #Advanced NMR Techniques and Applications #Markov Chains and Monte Carlo Methods #Nuclear physics research studies #astro-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.73.015804
published as Phys.Rev. C73 (2006) 015804 · 7 pages, accepted by Phys. Rev. C; this is a minor revision, improving a few phrases, as published in PRC
arxiv created 2005/11/23 · openalex publication_date 2006/01/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The location of the (\ensuremathγ,p)/(\ensuremathγ,n) and (\ensuremathγ,\ensuremathα)/(\ensuremathγ,n) line at \ensuremathγ process temperatures is discussed, using updated reaction rates based on global Hauser-Feshbach calculations. The results can be directly compared with classic \ensuremathγ process discussions. The nuclei exhibiting the largest sensitivity to uncertainties in nuclear structure and reaction parameters are specified, and suggestions for experiments are made. Additionally, the effect of employing two recent global \ensuremathα+nucleus potentials is discussed. It is found that branchings at higher mass depend more sensitively on these potentials. The case of 146Sm/144Sm production is addressed separately. Also, in this case the more recent \ensuremathα+nucleus potentials seem to address the issues concerning the production of these Sm isotopes in massive stars. In conclusion, it is found that it is unlikely that the calculated underproduction of p nuclides in the Mo-Ru region is due to nuclear physics deficiencies but that problems at higher mass number may still be solved by improved nuclear input.