Phys.Rev. C 99, 035805 (2019)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

New γ-ray transitions observed in ¹⁹Ne with implications for the ¹⁵O(α, γ)¹⁹Ne reaction rate

NUCLEAR REACTIONS ¹⁹F(³He, t), E=30 MeV; measured triton spectra, Eγ, Iγ, tγ- and γγ-coin using Gammasphere array for γ detection with the silicon detector array ORRUBA Dual Detectors for Experimental Structure Studies (GODDESS) at ATLAS-ANL facility. ¹⁹Ne; deduced levels, J, π, and γ-branching ratios for the decay of 4.14- and 4.20-MeV states. ¹⁵O(α, γ)¹⁹Ne, E≈18-180 keV; calculated fractional contribution of the corrected branching ratios for the 4.14 MeV, 7/2- and 4.20 MeV, 9/2- states in ¹⁹Ne to astrophysical reaction rate, which is of significance in breakout from the hot CNO cycle in type I x-ray bursts. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.99.035805