期刊
FAIRNESS 2014: FAIR NEXT GENERATION SCIENTISTS 2014
卷 599, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1742-6596/599/1/012031
关键词
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资金
- Division Of Physics
- Direct For Mathematical & Physical Scien [1430152] Funding Source: National Science Foundation
Rapid neutron capture or 'r-process' nucleosynthesis is a critical process for creating approximately half of heavy elements above iron in the Universe. Simulations of the r-process require theoretical calculations of neutron capture and beta-decay rates for thousands of short-lived nuclei for which no experimental data exists. We explore the impact of uncertainties in theoretical nuclear rates by performing global monte carlo simulations. We show that randomly varying neutron capture and beta-decay rates within current theoretical model uncertainties results in large error bars for r-process predictions. We conclude that the reduction of rate uncertainties either by new measurements or by improved nuclear models will allow for more robust r-process predictions.
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