Geodesic
Asymptotic fields and the $S$ matrix in the lowest sector of the Lee model
Teoretičeskaâ i matematičeskaâ fizika, Tome 16 (1973) no. 2, pp. 157-168 
L. A. Dadashev. Asymptotic fields and the $S$ matrix in the lowest sector of the Lee model. Teoretičeskaâ i matematičeskaâ fizika, Tome 16 (1973) no. 2, pp. 157-168. http://geodesic.mathdoc.fr/item/TMF_1973_16_2_a1/
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Voir la notice de l'article provenant de la source Math-Net.Ru

It is shown that in the lowest sector of the Lee model there exist asymptotic fields that allow a particle interpretation. The $S$ matrix calculated by means of these fields is equal to the $S$ matrix obtained by solving the Lipmann–Sehwinger equation [2].

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