ANALYTICITY OF THE PRODUCTION AMPLITUDE IN THE HIGHER ORDER DIAGRAM
Journal Article
·
· Progr. Theoret. Phys. (Kyoto)
Partial-wave s-singularity of the production amplitude is analyzed in the cases of pi + N yields 2 pi + N and 2 pi + N yields 2 pi + N. It is shown that the complex singularities of the fourthorder diagram coincide completely with those obtained from the corresponding pole diagram. Although the left-hand and right-hand singularities simultaneously appear on some region of the s-t plane, they are shown to be separated unambigrously. Detailed discussions about more general diagrams are also made and similar results are obtained. (auth)
- Research Organization:
- Tohoku Univ., Sendai
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-009188
- OSTI ID:
- 4116860
- Journal Information:
- Progr. Theoret. Phys. (Kyoto), Journal Name: Progr. Theoret. Phys. (Kyoto) Vol. Vol: 30
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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