![]() ![]() This technique provides a valuable new approach to such diverse problems as dating old ground water, the solar neutrino problem, measuring charge radii of exotic nuclei and medical applications. The atomic physics research consists of six experimental programs as follows: (1) dissociation and other interactions of energetic molecular ions in solid and gaseous targets (2) electron spectroscopy with fast atomic and molecular-ion beams (3) beam-foil research and collision dynamics of heavy ions (4) photoionization-photoelectron research (5) high-resolution, laser-rf spectroscopy with atomic and molecular beams and (6) theoretical atomic physics. ![]() Results of particular interest were obtained in the nuclear force program where the inclusion of 3-body forces led to simultaneous improvement in the binding of /sup 3/He and /sup 4/He more ยป and saturation of nuclear matter. Nuclear structure theory was applied to interpret decays of high-spin states and inelastic pion scattering. In nuclear theory, the coupled-channel code for treating heavy-ion inelastic scattering was completed and application to particular experiments began. A precision measurement is under way of the /sup 7/Be(p.gamma.) cross section, one of the key components in the solar neutrino anomaly. The importance of the time component of the weak axial-vector current has been studied through the. Construction of the ATLAS facility began in FY 1982 and all progress has been on schedule. In heavy-ion physics, the superconducting linac booster is being used with increasing scientific profit. A major effort is being devoted to the scientific and technical considerations involved in proposing to build a multi-GeV C.W. An experiment to study neutrino oscillations is being planned at LAMPF with substantial involvement from Argonne. In medium-energy pion physics, considerable progress has been made in understanding the propagation and absorption of pions (deltas) in the nuclear medium. ![]()
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