Phys.Rev. C 96, 032801 (2017)

C.Wrede, B.E.Glassman, D.Perez-Loureiro, J.M.Allen, D.W.Bardayan, M.B.Bennett, B.A.Brown, K.A.Chipps, M.Febbraro, C.Fry, M.R.Hall, O.Hall, S.N.Liddick, P.O'Malley, W.-J.Ong, S.D.Pain, S.B.Schwartz, P.Shidling, H.Sims, P.Thompson, H.Zhang

New portal to the ¹⁵O(α, γ)¹⁹Ne resonance triggering CNO-cycle breakout

RADIOACTIVITY ²⁰Mg(β⁺), (β⁺p)[from ⁹Be(²⁴Mg, X), E=170 MeV/nucleon using A1900 separator at MSU-NSCL facility]; measured Eγ, Iγ, βγ- and (implants)γ-coin using SeGA array for γ detection. ¹⁹Ne; deduced level at 4034 keV, β⁺-delayed proton branching ratio; discussed possible α-decay of 4034 level. ²⁰Mg(β⁺α); discussed possible decay branch. Relevance to hot CNO cycles during type I x-ray bursts on accreting neutron stars.

doi: 10.1103/PhysRevC.96.032801