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Abstract Neutron-induced nuclear reactions play an important role in the Big Bang Nucleosynthesis. Their excitation functions are, from an experimental point of view, usually difficult to measure. Nevertheless, in the last decades, big efforts have led to a better understanding of their role in the primordial nucleosynthesis network. In this work, we apply the Trojan Horse Method to extract the cross section at astrophysical energies for the3He(n,p)3H reaction after a detailed study of the2H(3He,pt)H three-body process. Data extracted from the present measurement are compared with other published sets. The reaction rate is also calculated, and the impact on the Big Bang nucleosynthesis is examined in detail.
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This content will become publicly available on June 27, 2026
Nucleosynthesis with tritium
Abstract This paper reports on the possible role of tritium-induced reactions of light nuclei, which may influence nucleosynthesis in short-lived environments such as the third minute of the Big Bang. They may also play a role during the emergence of the neutrino-driven shock front in core collapse supernovae or merging neutron stars at extreme densities. The production of tritium requires a very dynamic and neutron-rich environment; under such conditions tritium-induced reactions are expected to play an important role in the development of specific reaction patterns that could lead to a delayed release of neutrons influencing the associated nucleosynthesis. Here, we summarize different possible reaction sequences and discuss the strength and impact of tritium cluster resonances that occur near the tritium threshold in the respective compound systems.
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- Award ID(s):
- 2329970
- PAR ID:
- 10631749
- Publisher / Repository:
- IOP Publishing
- Date Published:
- Journal Name:
- Journal of Physics G: Nuclear and Particle Physics
- Volume:
- 52
- Issue:
- 6
- ISSN:
- 0954-3899
- Page Range / eLocation ID:
- 063001
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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