Phys.Rev. C 109, 045808 (2024)

W.Nan, Y.P.Shen, B.Guo, Z.H.Li, Y.J.Li, D.Y.Pang, J.Su, S.Q.Yan, Q.W.Fan, J.C.Liu, C.Chen, X.Y.Li, G.Lian, T.L.Ma, W.K.Nan, Y.B.Wang, S.Zeng, H.Zhang, W.P.Liu

New determination of the astrophysical S_E1 factor of the ¹²C(α, γ)¹⁶O reaction via the ¹²C(¹¹B, ⁷Li)¹⁶O transfer reaction

NUCLEAR REACTIONS ¹²C(¹¹B, ¹¹B), (¹¹B, ⁷Li)¹⁶O, E=50 MeV; measured reaction products; deduced σ(θ), asymptotic normalization coefficient (ANC), α-particle ANC, reduced α-width, spectroscopic factors. ¹²C(α, γ)¹⁶O, E(cm)<4 MeV; deduced astrophysical E1 S-factor using obtained ANC for 7.117-MeV 1^- state, S_E1(300) factor of the ground-state transitions. Finite range distorted-wave Born approximation (FRDWBA) and coupled-reaction channel (CRC) analysis. Comparison to other experimental values and NACRE II compilation data. High-precision Q3D magnetic spectrograph with two-dimensional position-sensitive silicon detector placed in focal plane at the HI-13 Tandem Accelerator Laboratory (China Institute of Atomic Energy).

doi: 10.1103/PhysRevC.109.045808