Branches of 33S(p,γ)34Cl at Oxygen-Neon Nova Temperatures

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,γ)34Cl reaction influences this ratio directly by destroying 33S in novae. Additionally, β-delayed γ-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,γ)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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Cited by in corpus (4)

• Isotopic 32S/33S ratio as a diagnostic of presolar grains from novae
• Constraining nova observables: direct measurements of resonance strengths in 33S(p,γ)34Cl
• Discovery of ${}^{34g,m}$Cl$(p,\gamma {)}^{35}$Ar resonances activated at classical nova temperatures
• Phenomenological Aspects of R-parity Violating Supersymmetry with A Vector-like Extra Generation