Phys.Rev. C 104, 055806 (2021)

S.Ota, G.Christian, W.N.Catford, G.Lotay, M.Pignatari, U.Battino, E.A.Bennett, S.Dede, D.T.Doherty, S.Hallam, F.Herwig, J.Hooker, C.Hunt, H.Jayatissa, A.Matta, M.Moukaddam, E.Rao, G.V.Rogachev, A.Saastamoinen, D.Scriven, J.A.Tostevin, S.Upadhyayula, R.Wilkinson

(⁶Li, d) and (⁶Li, t) reactions on ²²Ne and implications for s-process nucleosynthesis

NUCLEAR REACTIONS ⁶Li(²²Ne, d)²⁶Mg, ⁶Li(²²Na, t)²⁵Mg, E=154 MeV; ²H(²²Ne, p)²³Ne, E not given; measured reaction products, E(d), I(d), E(p), I(p), Eγ, Iγ, ²⁶Mg and ²⁵Mg recoils, (²⁶Mg)γ-coin, (²⁵Mg)γ-coin, (particle)(particle)-coin, σ(θ) using TIARA Si detector array of two sets of Si detectors, 'Hyball' and 'Barrel', MDM high-resolution and broad range magnetic spectrometer, and array of four HPGe detectors at the K150 cyclotron of Texas A and M University. ²³Ne, ²⁵Mg, ²⁶Mg; deduced levels, J, π, resonances, resonances in the Gamow window of ²²Ne(α, n)²⁵Mg reaction, spectroscopic factors, α-spectroscopic factors for ²⁶Mg, resonance strengths, impact of ²²Ne+α resonances on s-process nucleosynthesis; comparison of σ(θ) data with DWBA calculations using FRESCO code. Comparison with previous experimental results. ²²Ne(α, n), (α, γ); calculated s-process overproduction factors in stars 3 and 5 times the mass of the sun for A=60-210 isotopes.

doi: 10.1103/PhysRevC.104.055806