Cross section and recoil properties of the products from the interaction of 240 MeV 12C ions with natAg

We have measured the formation cross sections and the recoil properties of the products from the interaction of 240 MeV 12C with natural Ag targets. From the data, we have constructed charge- and mass-distribution curves. With the measured recoil range and forward-to-backward ratios, we deduced the formation mechanisms, and found that the yields in the mass range between A 40 and A = 70, with a total cross section of 6±1 mb, were mainly formed by the fission process. The yields between A = 70 and A = 130, with a total cross section of 2300±200 mb, were formed by the direct reactions in which the target-like transfer reaction products contributed 1000±100 mb and spallation reactions contributed 1306±200 mb. (orig.)