Singularities of the Four-Point Function in Perturbation Theory with Variable Masses
Journal Article
·
· Journal of Mathematical Physics
The Landau surface for the four-point function with one or more variable external masses is parameterized. The real singularities of the four-point function with one external mass are explicitly determined. The locations of the complex singularities of the function depend on the choice of the cuts for the three-point function. Several suggestions are made as to how these could be taken. (auth)
- Research Organization:
- Univ. of California, San Diego
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-031137
- OSTI ID:
- 4688810
- Journal Information:
- Journal of Mathematical Physics, Journal Name: Journal of Mathematical Physics Journal Issue: 7 Vol. 4; ISSN JMAPAQ; ISSN 0022-2488
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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