Elsevier

Nuclear Physics A

Volume 344, Issue 2, 4 August 1980, Pages 351-360
Nuclear Physics A

Cross-section measurements and thermonuclear reaction rates for 49Ti(p, γ)50V and 49Ti(p, n)49V

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Abstract

The yield of γ-rays from the reaction 49Ti(p, γ)50V has been measured as a function of bombarding energy over the range 0.74–2.27 MeV and the yield of neutrons from the reaction 49Ti(p, n)49V has been measured from threshold to a bombarding energy of 3.25 MeV. Strong competition effects were observed in the γ-ray yield at the opening of the neutron channel. The energy dependence of these cross sections is compared with statistical-model calculations, and good agreement is achieved. Thermonuclear reaction rates are calculated for the temperature range 5 × 108–5 × 109 K which includes the range of temperatures of interest in nucleosysnthesis calculations. The effect of a strong isobaric analogue resonance on the (p, γ) thermonuclear reaction rate is identified and its importance is discussed.

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Cited by (0)

Supported in part by the Australian Research Grants Committee (B77/15413).

††

Queen Elizabeth II Fellow. Present address: Kodak Research Laboratories. Coburg, Victoria 3058, Australia.

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