Single-neutron knockout from 34,35Si and 37S -: art. no. 034318

Results of single-neutron knockout experiments from Si-34,Si-35 at 73A MeV and from S-37 at 69A MeV on a Be target are reported. The final states in the reaction residues have been identified by measuring g rays in coincidence with the (A-1) fragments. The results are compared with predictions based on the many-body shell model combined with eikonal and transfer-to-the-continuum reaction models. For the Be-9(Si-34, Si-33+gamma)X reaction, the measured parallel-momentum distributions of the reaction residues demonstrate the orbital-angular-momentum assignments l = 2, 0, 2 to levels at 0, 1.010, and 4.32 MeV (adopted values). The measured absolute spectroscopic factors exhaust a large fraction of the sum rules for a full (N=20) sd shell. We also give results for the absolute and relative positions of the parallel-momentum distributions and present experimental and theoretical results for the complex spectra of the Be-9(Si-35, Si-34+gamma)X reaction. The measured inclusive cross section of 106(19) mb agrees well with the theoretical value of 98 mb, but more detailed conclusions are not possible. For the inclusive reaction Be-9(S-37, S-36) X a cross section of 99(12) mb is found compared to the theoretical prediction of 85 mb where only final states with spectroscopic factors greater than 0.03 have been included.