Production cross-sections of light neutron-rich nuclei from Ar-40 fragmentation at about 1 GeV/nucleon

Using a primary beam of Ar-40 at similar to 1A GeV impinging on a Be target , the production cross-sections of light neutron-rich fragments from projec tile fragmentation were measured at the projectile-fragment separator FRS a t GSI. The experimental cross-sections were obtained for isotopes of the el ements B to F both close to stability and near the neutron drip line. These data are compared to the results of the empirical parametrization EPAX. We also compare the results to those measured previously at LBL, As an additi onal result, the particle instability of O-26 has been confirmed. (C) 2000 Elsevier Science B.V. All rights reserved.