Phys.Rev. C 108, 035807 (2023)

L.Canete, D.T.Doherty, G.Lotay, D.Seweryniak, C.M.Campbell, M.P.Carpenter, W.N.Catford, K.A.Chipps, J.Henderson, R.G.Izzard, R.V.F.Janssens, H.Jayatissa, J.Jose, A.R.L.Kennington, F.G.Kondev, A.Korichi, T.Lauritsen, C.Muller-Gatermann, C.Paxman, Zs.Podolyak, B.J.Reed, P.H.Regan, W.Reviol, M.Siciliano, G.L.Wilson, R.Yates, S.Zhu

Confirmation of a new resonance in ²⁶Si and contribution of classical novae to the galactic abundance of ²⁶Al

NUCLEAR REACTIONS ¹²C(¹⁶O, 2n)²⁶Si, E=68 MeV; measured recoils, Eγ, Iγ, γγ-coin, (recoil)γ-coin; deduced resonances. ²⁶Si; deduced levels, J, π. ²⁵Al(p, γ)²⁶Si, T=0.1-0.5 GK; deduced astrophysical reaction rates using experimental information obtained in this work on ²⁶Si levels, contribution of individual resonances to the reaction rate. Nuclear structure information is compared to SPDPF shell-model calculations and available data on ²⁶Mg mirror nuclei. Data used for estimation of ²⁶Al galactic abundance. GRETINA tracking array consisting of 12 modules of 4 HPGe crystals coupled with Argonne Fragment Mass Analyzer (FMA) at ATLAS facility (ANL).

doi: 10.1103/PhysRevC.108.035807