We have measured production cross sections of projectilelike fragments in the reaction of neutron-deficient 112 Sn with a 9 Be target at an energy of E lab ϭ1A GeV. Results have been obtained for neutron-deficient products along the NϭZ line down to the subnanobarn range. We find very good agreement with the recently revised empirical parametrization EPAX. In addition, a few one-and two-proton pickup cross sections have been measured. The former ones are well reproduced by intranuclear-cascade calculations.
Excited states have been studied in 35Ar following the 16O(24Mg,1alpha1n)35Ar fusion-evaporation reaction at 60 MeV using the Ge-detector array GASP. A comparison with the mirror nucleus 35Cl shows two remarkable features: (i) A surprisingly large energy difference for the 13/2(-) states, in which the hitherto overlooked electromagnetic spin-orbit term is shown to play a major role, and (ii) a very different decay pattern for the 7/2(-) states, which provides direct evidence of isospin mixing.
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