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arXiv · 1101.0643

Branches of 33S(p,{\gamma})34Cl at Oxygen-Neon Nova Temperatures

B. M. Freeman·C. Wrede·B. G. Delbridge·A. Garcia·A. Knecht·A. Parikh·A. L. Sallaska
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Abstract

Recent simulations of classical novae on oxygen-neon white-dwarf stars indicate that the isotopic ratio 32S/33S has the potential to be a remarkable indicator of presolar grains of nova origin. The 33S(p,\gamma)34Cl reaction influences this ratio directly by destroying 33S in novae. Additionally, \beta-delayed \gamma-rays from the metastable state of 34Cl (t_{1/2} = 32 min) have been suggested to be potential nova observables. We have measured the branches for known 33S(p,\gamma)34Cl resonances that are activated at temperatures relevant to oxygen-neon novae. We provide the first reliable uncertainties on these branches and the first upper limits for several previously unmeasured branches.

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B. M. Freeman, C. Wrede, B. G. Delbridge, A. Garcia, A. Knecht, A. Parikh, A. L. Sallaska. 2011-01-04. Branches of 33S(p,{\gamma})34Cl at Oxygen-Neon Nova Temperatures. https://doi.org/10.1103/physrevc.83.048801

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