Phys.Rev. C 101, 025808 (2020)

Q.Liu, M.Febbraro, R.J.deBoer, S.Aguilar, A.Boeltzig, Y.Chen, M.Couder, J.Gorres, E.Lamere, S.Lyons, K.T.Macon, K.Manukyan, L.Morales, S.Pain, W.A.Peters, C.Seymour, G.Seymour, R.Toomey, B.Vande Kolk, J.Weaver, M.Wiescher

Low-energy cross-section measurement of the ¹⁰B(α, n)¹³N reaction and its impact on neutron production in first-generation stars

NUCLEAR REACTIONS ¹⁰B(α, n)¹³N, E=575-2522 keV; measured E(n), I(n), n(θ), σ(E, θ), differential S factors using deuterated liquid scintillator detector for neutrons at the University of Notre Dame Nuclear Science Laboratory. ¹⁰B(α, pγ)¹³C, E=835-1665 keV; measured Eγ and Iγ. ¹⁴N; deduced levels, resonances, J, π, Γ_α, Γ_n, Γ_p, Γ_d, and Γ from R-matrix analysis, and compared with earlier experimental results. ¹⁰B(α, n), (α, p), (α, d), (α, α), E(cm)=0.4-1.2 MeV; analyzed present and previous experimental data for differential σ(E) by R-matrix fit. ¹⁰B(α, n)¹³N, T=0.1-10 GK; deduced astrophysical reaction rates, and compared to literature data.

doi: 10.1103/PhysRevC.101.025808