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Prog. Theor. Phys. Vol. 23 No. 2 (1960) pp. 284-286

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A Note on the Ordinary and Anomalous Thresholds in Perturbation Theory

Noboru Nakanishi

Department of Physics, Kyoto University, Kyoto

(Received October 29, 1959)

Abstract:

Some further investigations are made for the singular point of the matrix element corresponding to the general Feynman graph.

URL : http://ptp.ipap.jp/link?PTP/23/284/
DOI : 10.1143/PTP.23.284

References:

N. Nakanishi, Prog. Theor. Phys. 22 (1959), 128 [PTP](referred to as NIII).
N. Nakanishi, Prog. Theor. Phys. 17 (1957), 401 [PTP](referred to as NI).
L. D. Landau, Nucl. Phys. 13 (1959), 181[CrossRef].
J. Mathews, Phys. Rev. 113 (1959), 381[APS].
K. Hiida and N. Nakanishi, Prog. Theor. Phys. 22 (1959), 863[PTP].

Citing Article(s) :

Progress of Theoretical Physics Vol. 24 No. 6 (1960) pp. 1275-1295 :
On the Validity of Multiple Dispersion Representations

Noboru Nakanishi
Progress of Theoretical Physics Vol. 25 No. 2 (1961) pp. 277-289 :
New Analyses of Anomalous Imaginary Part

Jun Otokozawa
Progress of Theoretical Physics Vol. 39 No. 3 (1968) pp. 768-771 :
Classical Motion of Particles and the Physical-Region Singularity of the Feynman Integral

Noboru Nakanishi

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