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Absorption in a Particle Oscillations

V. A. Kuzmin, V. I. Nazaruk

hep-pharXiv:hep-ph/0110182

Abstract

In the framework of field approach with finite time interval the particle oscillations in a medium are considered. The absorption in a final states do not lead to dramatic suppression of ab-transitions. Also we touch on the problem of infrared singularities. The approach under study is infrared-free. It is shown that "correction" published recently [A.Gal, Phys. Rev. C61 (2000) 028201] is clearly wrong.

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