Prog. Theor. Phys. Vol. 21 No. 1 (1959) pp. 1-17
On the Unstable States in Quantum Field Theory
Department of Physics, College of Science and Engineering, Nihon University, Tokyo
(Received July 25, 1958)
The unstable state in quantum field theory is investigated. Its properties are studied in detail by making use of Lee's model. The renormalization procedure is proposed and the corresponding Z-factor has values only between zero and unity. In the limit of g (the coupling constant) = 0, the Z-factor becomes unity in contrast to Naitō's Z-factor which becomes one-half.
DOI : 10.1143/PTP.21.1
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Citing Article(s) :
Progress of Theoretical Physics Vol. 26 No. 3 (1961) pp. 391-417
A Simple Model for Two-Channel Reaction in Field Theory and Its Application to the Y* Problem
Progress of Theoretical Physics Vol. 26 No. 6 (1961) pp. 829-843
Relativistic Quantum Field Theory of Unstable Particle
Mitsuru Hama and Sho Tanaka