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Integral Representations for Scattering Amplitudes in Perturbation Theory

Journal Article · · Progress of Theoretical Physics (Kyoto)
DOI:https://doi.org/10.1143/PTP.26.337· OSTI ID:4796765
Integral representations for scattering amplitudes are proposed that are more general than the Mandelstam representation. Support properties are investigated for practical cases and for the general case in every order of perturbation theory. Nambu-Symanzik's formula is proved in terms of the Feynman parametric integral, and an example (for the two-particle scattering) is given in which stability conditions are satisfied but no dispersion relation holds.
Research Organization:
Kyoto Univ.
Sponsoring Organization:
USDOE
NSA Number:
NSA-16-009402
OSTI ID:
4796765
Journal Information:
Progress of Theoretical Physics (Kyoto), Journal Name: Progress of Theoretical Physics (Kyoto) Journal Issue: 3 Vol. 26; ISSN 0033-068X
Country of Publication:
Country unknown/Code not available
Language:
English

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