Project description
Neutron-capture processes could help decipher heavy-element formation
Unravelling the cosmic processes responsible for element formation is the ultimate goal in nuclear astrophysics. Tackling the grand challenge of understanding heavy-element nucleosynthesis, the ERC-funded gRESONANT project aims to unveil the impact of overlooked nuclear structure effects on neutron-capture processes. By exploring low-energy gamma-decay resonances in neutron-rich and superheavy nuclei, gRESONANT could enhance understanding of astrophysical neutron-capture rates. The proposed activities will spark a novel research direction as no data exists on low-energy gamma resonance in neutron-rich and superheavy nuclei. gRESONANT will enable more precise estimations of unknown neutron-capture cross-sections, leading to significant advances in nuclear astrophysics.
Objective
THE GRAND CHALLENGE: The “Holy Grail” of nuclear astrophysics is to understand the astrophysical processes responsible for the formation of the elements. A particularly challenging part is the description of the heavy-element nucleosynthesis. The only way to build the majority of these heavy nuclides is via neutron-capture processes. Unaccounted-for nuclear structure effects may drastically change these rates.
MAIN HYPOTHESIS: Nuclear low-energy gamma-decay resonances at high excitation energies will enhance the astrophysical neutron-capture reaction rates.
NOVEL APPROACH: This proposal is, for the first time, addressing the M1 scissors resonance in deformed, neutron-rich nuclei and superheavy elements. A new experimental technique will be developed to determine the electromagnetic nature of the unexpected upbend enhancement. Further, s-process branch points for the Re-Os cosmochronology will be studied for the first time with the Oslo method.
OBJECTIVES:
1) Measure s-process branch point nuclei with the Oslo method
2) Radioactive-beam experiments for neutron-rich nuclei searching for the low-energy upbend and the M1 scissors resonance
3) Develop new experimental technique to identify the upbend’s electromagnetic nature
4) Superheavy-element experiments looking for the M1 scissors resonance
POTENTIAL IMPACT IN THE RESEARCH FIELD: This proposal will trigger a new direction of research, as there are no data on the low-energy gamma resonances neither on neutron-rich nor superheavy nuclei. Their presence may have profound implications for the astrophysical neutron-capture rates. Developing a new experimental technique to determine the electromagnetic character of the upbend is crucial to distinguish between two competing explanations of this phenomenon. Unknown neutron-capture cross sections will be estimated with a much better precision than prior to this project, and lead to a major leap forward in the field of nuclear astrophysics.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- natural sciences physical sciences theoretical physics particle physics particle accelerator
- natural sciences physical sciences astronomy stellar astronomy neutron stars
- natural sciences physical sciences astronomy physical cosmology big bang
- natural sciences physical sciences astronomy astrophysics
- natural sciences physical sciences astronomy stellar astronomy supernova
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
ERC-STG - Starting Grant
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2014-STG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
0313 Oslo
Norway
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