On the theory of slow-particle scattering in the two-dimensional case |
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Authors: | B Ya Balagurov |
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Institution: | 1.Institute of Biochemical Physics,Russian Academy of Sciences,Moscow,Russia |
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Abstract: | A solution to the problem of elastic scattering of low-energy particles on a “weak” potential U is given. An expression for the amplitude of s-wave scattering is found in this approximation, and it is shown that, for U < 0, it has a pole at the energy E
0 of the corresponding loosely bound state. An explicit expression in terms of the potential U is obtained for the preexponential factor, which refines the known order-of-magnitude estimate for E
0. |
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Keywords: | |
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