Abstract
Angular correlations between binary fission fragments have been measured in coincidence with light charged particles for 64, 129, 199, and 269 MeV {sup 3}He-induced reactions on a {sup 238}U target. Linear momentum transfer and missing linear momentum have been determined for a broad range of light-charged-particle energies {ital E}{sub LCP} and emission angles {theta}{sub LCP}. Average momentum transfer increases from a fraction of beam momentum for small detection angles to nearly full momentum transfer at backward angles. The missing momentum depends primarily on available energy'' {ital E}{sub av}=E{sub beam}{minus}E{sub LCP}, but neither on beam energy {ital E}{sub beam} nor light particle detection angle. Backward proton and deuteron emission is incompatible with statistical evaporation following complete or incomplete fusion.
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