Phys.Rev. C 85, 035804 (2012)

N.Oulebsir, F.Hammache, P.Roussel, M.G.Pellegriti, L.Audouin, D.Beaumel, A.Bouda, P.Descouvemont, S.Fortier, L.Gaudefroy, J.Kiener, A.Lefebvre-Schuhl, V.Tatischeff

Indirect study of the ¹²C(α, γ)¹⁶O reaction via the ¹²C(⁷Li, t)¹⁶O transfer reaction

NUCLEAR REACTIONS ¹²C(⁷Li, t)¹⁶O, E=28, 34 MeV; measured E(t), I(t), σ(θ) using Enge split-pole magnetic spectrometer; deduced levels, J, π, yields, width, spectroscopic factors, ANC, α-reduced width. HF+FR-DWBA analysis of σ(θ) data. ¹²C(α, α'), E(cm)=1-5 MeV; analyzed data by R-matrix analysis; deduced E2 and E1 components. ¹²C(α, γ)¹⁶O, E(cm)=0.3-3.5 MeV; deduced astrophysical S factor with R-matrix calculations of the E2 and E1 components. Comparison with earlier results and NACRE evaluation.

RADIOACTIVITY ¹⁶N(β^-); analyzed β-delayed α spectrum by R-matrix fit for validation purpose.

doi: 10.1103/PhysRevC.85.035804