Phys.Rev. C 99, 045807 (2019)

S.N.Paneru, C.R.Brune, R.Giri, R.J.Livesay, U.Greife, J.C.Blackmon, D.W.Bardayan, K.A.Chipps, B.Davids, D.S.Connolly, K.Y.Chae, A.E.Champagne, C.Deibel, K.L.Jones, M.S.Johnson, R.L.Kozub, Z.Ma, C.D.Nesaraja, S.D.Pain, F.Sarazin, J.F.Shriner, D.W.Stracener, M.S.Smith, J.S.Thomas, D.W.Visser, C.Wrede

s-wave scattering lengths for the ⁷Be + p system from an R-matrix analysis

NUCLEAR REACTIONS ¹H(⁷Be, ⁷Be), (⁷Be, ⁷Be'), E=4-27 MeV; ¹²C(⁷Be, ⁷Be), E=7, 14 meV; measured scattered ions, differential σ(θ) using (CH₂)_n target and segmented Silicon Detector Array (SIDAR) for scattered ion detection at ORNL-HRIBF; deduced s-wave scattering lengths, R-matrix analysis of elastic and inelastic scattering data; analyzed cross-section data from Louvain-la-Neuve reported in 2003An06 reference. Comparison with previous experimental values, and optical model calculations. Relevance to astrophysical S factor for ⁷Be(p, γ) reaction. ⁸B; verified levels at 1.9, 2.21 and 9.0 MeV.

doi: 10.1103/PhysRevC.99.045807