Abstract
Under the assumption of an exponential law of decay of quasistationary states, an integral equation is obtained for the wave function Ψ+ of a quasistationary state together with an expression for the energy shift ΔE. These are used to obtain an expression for the decay probability and an optical theorem for quasistationary states and also the connection between the decay amplitude and the amplitude of resonance scattering.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 43–46, September, 1974.
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Greiser, A.I. On the theory of quasistationary states. Soviet Physics Journal 17, 1225–1227 (1974). https://doi.org/10.1007/BF01208669
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DOI: https://doi.org/10.1007/BF01208669