Abstract
A semiclassical technique is developed for calculating the angular and energy distributions of charged particles evaporated from deformed nuclei. It includes an analytical expression for particle momentum at infinity via its momentum at the emission point, which reasonably reproduces exact calculations, and a triangular weighting function for averaging over the cascade temperature. Essential reduction in computational effort is achieved due to a compact expression for emission widths and a phenomenological treatment of penetration through an aspherical barrier. The application of this technique to alpha -emission from strongly excited Yb isotopes with aligned spin has produced values of the deformation parameter which are in good agreement with liquid drop model calculations.
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