Abstract
Sensitivity studies have shown that the 15O(α, γ)19Ne reaction is the most important reaction rate uncertainty affecting the shape of light curves from Type I X-ray bursts. This reaction is dominated by the 4.03 MeV resonance in 19Ne. Previous measurements by our group have shown that this state is populated in the decay sequence of 20Mg. A single 20Mg(βpα)15O event through the key 15O(α, γ)19Ne resonance yields a characteristic signature: the emission of a proton and alpha particle. To achieve the granularity necessary for the identification of this signature, we have upgraded the Proton Detector of the Gaseous Detector with Germanium Tagging (GADGET) into a time projection chamber to form the GADGET II detection system. GADGET II has been fully constructed, and is entering the testing phase.
Original language | English |
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DOIs | |
State | Published - Feb 24 2022 |
Event | 16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021 - Chengdu, China Duration: Sep 21 2021 → Sep 25 2021 |
Conference
Conference | 16th Symposium on Nuclei in the Cosmos, NIC-XVI 2021 |
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Country/Territory | China |
City | Chengdu |
Period | 09/21/21 → 09/25/21 |
Funding
This work was supported by the U.S. National Science Foundation under Grants No. PHY-1102511, PHY-1565546, PHY-1913554, and PHY-1811855, and the U.S. Department of Energy, Office of Science, under award No. DE-SC0016052
Funders | Funder number |
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National Science Foundation | PHY-1913554, PHY-1565546, PHY-1811855, PHY-1102511 |
U.S. Department of Energy | |
Office of Science | DE-SC0016052 |