С Бєльчиков, С Майданюк, В Ольховський - Резонанси в задачах розсіювання частинок на ядрах і задачах розпаду ядер - страница 2

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RESONANCES IN PROBLEMS OF A SCATTERING OF PARTICLES UPON NUCLEI AND PROBLEMS OF A DECAY OF NUCLEI

 

S.V. Belchikov, S.P. Maidanyuk, V.S. Olkhovsky

Center of Science "Institute for Nuclear Research ", National Academy of Sciences of Ukraine, pr. Nauki, 47, 03680 Kiev, Ukraine

For a problem of a decay of a nuclear with the one-peak Coulomb barrier at the moment 1=0 the exact solution of finding of quasi-stationary levels and Г-widths is obtained. Developing an approach, used in this problem, for decay problems with barriers of a composite form, an analysis of a solution of a problem with Strutinsky's double—peak barrier is carried out.

Resonant and potential components of the S-matrix in a problem of a scattering of a particle upon the nuclear are calculated, using of the method of multiple internal reflections. Times of tunneling and reflection differ by one item depending on a scattering phase.

The new method of a calculation of resonant levels for the scattering problems with a barrier of an arbitrary form is submitted.

Key words: scattering and a-decay reactions, exact solutions of energy eigenvalues, times of tunneling and reflection, resonanses.

Стаття надійшла до редколегії 15.05.2001 Прийнята до друку 26.09.2001

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С Бєльчиков, С Майданюк, В Ольховський - Резонанси в задачах розсіювання частинок на ядрах і задачах розпаду ядер