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Multiparticle Photonuclear Reactions in the p-Process at Temperatures between 1 and 10 GK

  • Elementary Particles and Fields
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Abstract

The role of (γ, 2n), (γ, pn), and (γ, 2p) multiparticle photonuclear reactions in processes that lead to the nucleosynthesis of p-nuclides is considered. The library of rates of multiparticle photonuclear reactions that was developed for the temperature range between 1 and 10 GK and which is intended for use in stellar-evolution models and in calculations of nucleosynthesis is described. A simulation of the p-process in the course of an SN-IIa core-collapse event reveals that, within the scenario being considered, a dominant effect of multiparticle photonuclear reactions consists in enhancing the rate of photodisintegration of p-nuclides at temperatures above 6 to 7 GK.

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Correspondence to K. A. Stopani.

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Original Russian Text © S.S. Belyshev, A.A. Kuznetsov, K.A. Stopani, V.V. Khankin, 2018, published in Yadernaya Fizika, 2018, Vol. 81, No. 3, pp. 322–330.

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Belyshev, S.S., Kuznetsov, A.A., Stopani, K.A. et al. Multiparticle Photonuclear Reactions in the p-Process at Temperatures between 1 and 10 GK. Phys. Atom. Nuclei 81, 338–346 (2018). https://doi.org/10.1134/S1063778818030055

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  • DOI: https://doi.org/10.1134/S1063778818030055

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