Journal
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
Volume 86, Issue -, Pages 86-126Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ppnp.2015.09.001
Keywords
Binding energies and masses; r-process; Photonuclear reactions; Beta decay
Categories
Funding
- National Science Foundation [PHY0822648, PHY1419765]
- Department of Energy [DE-SC0013039, DE-FG02-02ER41216, DE-FG02-10ER41677]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1430152] Funding Source: National Science Foundation
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The astrophysical rapid neutron capture process or 'r process' of nucleosynthesis is believed to be responsible for the production of approximately half the heavy element abundances found in nature. This multifaceted problem remains one of the greatest open challenges in all of physics. Knowledge of nuclear physics properties such as masses, beta-decay and neutron capture rates, as well as beta-delayed neutron emission probabilities are critical inputs that go into calculations of r-process nucleosynthesis. While properties of nuclei near stability have been established, much still remains unknown regarding neutron-rich nuclei far from stability that may participate in the r process. Sensitivity studies gauge the astrophysical response of a change in nuclear physics input(s) which allows for the isolation of the most important nuclear properties that shape the final abundances observed in nature. This review summarizes the extent of recent sensitivity studies and highlights how these studies play a key role in facilitating new insight into the r process. The development of these tools promotes a focused effort for state-of-the-art measurements, motivates construction of new facilities and will ultimately move the community toward addressing the grand challenge of 'How were the elements from iron to uranium made?'. (C) 2015 Elsevier B.V. All rights reserved.
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