Branchings in the gamma-process path revisited

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dc.creatorRauscher, T.
dc.date2005-10-25
dc.date2005-11-23
dc.date.accessioned2026-07-07T06:44:01Z
dc.date.available2026-07-07T06:44:01Z
dc.descriptionThe location of the (gamma,p)/(gamma,n) and (gamma,alpha)/(gamma,n) line at gamma-process temperatures is discussed, using updated reaction rates based on global Hauser-Feshbach calculations. The results can directly be compared to classic gamma-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 impact of employing two recent global alpha+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 alpha+nucleus potentials seem to improve 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 cured by improved nuclear input.
dc.description7 pages, accepted by Phys. Rev. C; this is a minor revision, improving a few phrases, as published in PRC
dc.identifierhttps://arxiv.org/abs/astro-ph/0510710
dc.identifierhttp://arxiv.org/abs/astro-ph/0510710
dc.identifierPhys.Rev. C73 (2006) 015804
dc.identifierdoi:10.1103/PhysRevC.73.015804
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102635
dc.subjectAstrophysics
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleBranchings in the gamma-process path revisited
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