US-Hungary Joint Fund Physics Research on Two-Electron Processes Involving Continuous States

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The primary objective of this US-Hungary research project under the Hungary Joint Fund between Dr. Denes Berenyi, Institute of Nuclear Research of the Hungarian Academy of Science, and Dr. John Tanis, Western Michigan University, is to investigate fundamental two-electron processes in ion-atom collisions. Two-electron processes involving continuum states can play an important role in the dynamics of ion-atom collisions, and, therefore, provide insight into the few-body problem. This project will work to determine the mechanisms responsible for continuum-electron emission and to evaluate the role which the electron-electron interaction plays in giving rise to continuum electrons. Studies will be conducted for several ions colliding with neutral gas targets over an energy range from a few keV/u to several MeV/u. Individual processes will be isolated and investigated using coincidence techniques in which continuum electrons are recorded in coincidence with projectile ions emerging from the interaction region in specific charge states. This project in nuclear energy fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool resources in areas of strong mutual interest and competence.