Measurement of 15O(α,γ)19Neresonance strengths

Autor: Magnus, P.V., Smith, M.S., Howard, A.J., Parker, P.D., Champagne, A.E.
Zdroj: Nuclear Physics A; January 1990, Vol. 506 Issue: 2 p332-345, 14p
Abstrakt: States in 19Ne above the 15O+ αthreshold were populated by means of the 19F(3He,t)19Ne∗reaction, and their alpha-particle decays to the 15O ground state were measured. The branching ratios Γα/Γtotalfor the Ec.m.= 850-, 1020-, 1971-, 1183- and1563-keVresonances in 19O+ αwere determined. This information together with alpha-particle and/or gamma-ray partial widths (determined from knowledge of these quantities for the mirror states in 19F) determines the strengths of these 15O(α,γ)19Neresonances and the 15O(α, γ)19Nereaction rate for temperatures between 7 × 108and3 × 109K.
Databáze: Supplemental Index