One-neutron removal reactions on neutron-rich psd-shell nuclei

A systematic study of high energy, one-neutron removal reactions on 23 neut ron-rich, psd-shell nuclei (Z = 5-9, A = 12-25) has been carried out. The l ongitudinal momentum distributions of the core fragments and corresponding single-neutron removal cross sections are reported for reactions on a carbo n target. Extended Glauber model calculations, weighted by the spectroscopi c factors obtained from shell model calculations, are compared to the exper imental results. Conclusions are drawn regarding the use of such reactions as a spectroscopic tool and spin-parity assignments are proposed for B-15, C-17, N19-21, O-21,O-23, F23-25. The nature of the weakly bound systems B-1 4 and C-15,C-17 is discussed. (C) 2000 Elsevier Science B.V. All rights res erved.