58 Ni( 3 He,t) 58 Cu*(γ) measurements with GODDESS to constrain the astrophysical rate of 57 Ni(p,γ) 58 Cu

58 Ni( 3 He,t) 58 Cu*(γ) measurements with GODDESS to constrain the astrophysical rate of 57 Ni(p,γ) 58 Cu
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使用 GODDESS 测量 58 Ni( 3 He,t) 58 Cu*(γ) 来限制 57 Ni(p,γ) 58 Cu 的天体物理速率

DOI:
10.1088/1742-6596/2586/1/012109
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发表时间:
2023
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
Cizewski, J A
Cizewski, J A
中科院分区:
--
文献类型:
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作者:
Carmichael, S R;Pain, S D;Siciliano, M;Allen, J;Bardayan, D W;Boomershine, C;Campbell, C M;Carpenter, M P;Chipps, K A;Cizewski, J A

文献摘要

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核心塌陷超新星 (CCSNe) 残余物中 44Ti 衰变产生的 γ 射线观测提供了有关这些事件中发生的核合成的重要信息,因为 44Ti 的产生对 CCSNe 条件敏感。 44Ti 的最终丰度也对特定的核输入参数敏感,其中之一是 57Ni(p,γ) 58Cu 反应速率。因此,如果 44Ti 的生产要成为 CCSNe 的有效探测,那么 57Ni(p,γ) 58Cu 的精确速率至关重要。为了通过实验限制 57Ni(p,γ) 58Cu 速率,使用阿贡国家实验室 ATLAS 设施的 GODDESS(用于实验结构研究的 GRETINA ORRUBA 双探测器)通过 58Ni(3He,t)58Cu*(γ) 反应测量 58Cu 的结构特性。介绍了实验、正在进行的分析和计划的详细信息。
The observation of γ rays from the decay of 44Ti in the remnants of core-collapse supernovae (CCSNe) provides crucial information regarding the nucleosynthesis occurring in these events, as 44Ti production is sensitive to CCSNe conditions. The final abundance of 44Ti is also sensitive to specific nuclear input parameters, one of which is the 57Ni(p,γ) 58Cu reaction rate. A precise rate for 57Ni(p,γ) 58Cu is thus critical if 44Ti production is to be an effective probe into CCSNe. To experimentally constrain the 57Ni(p,γ) 58Cu rate, the structure properties of 58Cu were measured via the 58Ni(3He,t)58Cu*(γ) reaction using GODDESS (GRETINA ORRUBA Dual Detectors for Experimental Structure Studies) at Argonne National Laboratory’s ATLAS facility. Details of the experiment, ongoing analysis, and plans are presented.