~（32）Cl的自由态与~（31）S（p，γ）~（32）Cl的反应速率
Unbound states of 32Cl and the 31S(p,γ)32Cl reaction rate
摘要：
31 S（p，γ）32 Cl反应被认为是新星中SiP循环的主要爆发路径，对于理解在一些新星喷出物中观测到的硫的富集非常重要。我们研究了~（32）S（~ 3 He，t）~（32）Cl的电荷交换反应，以确定~（32）Cl中质子未结合能级的性质，这些性质以前对~（31）S（p，γ）~（32）Cl的反应速率有很大的不确定性。测量的triton磁刚度被用来确定激发能在32 Cl。通过检测来自未结合的32 Cl状态的衰变质子与triton的一致来获得质子-分支比。计算了改进的~（31）S（p，γ）~（32）Cl反应速率，包括稳健的统计和系统不确定度。
英文摘要：
The 31S(p,γ)32Cl reaction is expected to provide the dominant break-out path from the SiP cycle in novae and is important for understanding enrichments of sulfur observed in some nova ejecta. We studied the 32S(3He,t)32Cl charge-exchange reaction to determine properties of proton-unbound levels in 32Cl that have previously contributed significant uncertainties to the 31S(p,γ)32Cl reaction rate. Measured triton magnetic rigidities were used to determine excitation energies in 32Cl. Proton-branching ratios were obtained by detecting decay protons from unbound 32Cl states in coincidence with tritons. An improved 31S(p,γ)32Cl reaction rate was calculated including robust statistical and systematic uncertainties.
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