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New Analyses of Anomalous Imaginary Part

Journal Article · · Progress of Theoretical Physics (Kyoto)
DOI:https://doi.org/10.1143/PTP.25.277· OSTI ID:4039718
Using a method of analytic continuation and parameter integration, the anomalous imaginary part of the scattering amplitude is written explicitly with the absorptive part of the matrix element that connects the initial or final state with the intermediate state. The meaning of the intermediate state is clarified. In the case of pion-deuteron scattering, all the singularities are determined. These singularities agree with those obtained by performing a direct parameter integration on the fourth order diagram.
Research Organization:
Tokyo Univ.
Sponsoring Organization:
USDOE
NSA Number:
NSA-15-022953
OSTI ID:
4039718
Journal Information:
Progress of Theoretical Physics (Kyoto), Journal Name: Progress of Theoretical Physics (Kyoto) Journal Issue: 2 Vol. 25; ISSN 0033-068X
Country of Publication:
Country unknown/Code not available
Language:
English

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