Fission Mass Widths in 19 F + 232 Th, 16 O + 235,238 U Reactions at Near-barrier Energies

Abstract

The fission fragment mass ratio distributions of fusion-fission events have been measured for the reactions of 19F + 232Th, 16O + 235U, and 16O + 238U at energies near and below the fusion barrier. It is found that the mass ratio widths follow a decreasing trend with decreasing energy, contrary to recent claims of anomalous mass widths attributed to a quasifission mechanism. Show more