25Mg (α, n)28Si and 26Mg(α, n)29Si as neutron sources in explosive neon burning

Details 25Mg (α, n)28Si and 26Mg(α, n)29Si as neutron sources in explosive neon burning 25Mg (α, n)28Si and 26Mg(α, n)29Si as neutron sources in explosive neon burning

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nupha.405..170a&link_type=abstract

Nuclear Physics A, Volume 405, Issue 1, p. 170-178.

Physics

Nuclear Physics

6

Nuclear Reactions

Scientific paper

The yields of neutrons from the reaction 25Mg(α, n)28Si and of γ-rays from the reaction 25Mg(α, nγ)28Si have been measured as a function of bombarding energy over the range 1.8-6.3 MeV, and the yield of neutrons from 26Mg(α, n)29Si has been measured over the range 1.8-6.0 MeV. Cross sections for 25, 26Mg(α, n)28, 29Si were extracted from the data and compared with global statistical-model calculations. The agreement is very good. Thermonuclear reaction rates under stellar conditions appropriate for explosive neon burning are calculated and their significance for the nucleosynthesis of rare neutron-rich nuclei is discussed.

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