Discussion Overview
The discussion revolves around seeking references for understanding Cutkosky cutting rules in the context of quantum field theory (QFT), specifically for identifying the absorptive parts of one- or two-loop diagrams. Participants share their experiences with existing literature and express challenges in finding suitable resources.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant requests recommendations for references on Cutkosky cutting rules, noting that Peskin and Schroder does not meet their needs.
- Another participant suggests "Analytic S Matrix" by Eden et al. as a potential resource.
- A different participant mentions having reviewed numerous QFT and particle physics texts without finding significant information beyond Peskin and Schroder.
- Concerns are raised about the perceived decline in popularity of Cutkosky rules among current academics, with one participant sharing their prior discussions with professors who also could not provide useful references.
- A participant references an older book by Geoffrey Chew, "S-Matrix Theory of Strong Interactions," which discusses singularities and absorptive parts, and mentions its historical context within the S-Matrix approach.
- Another participant acknowledges the complexity of the topic and the challenges in finding contemporary discussions on absorptive parts.
Areas of Agreement / Disagreement
Participants generally agree on the difficulty of finding adequate references on Cutkosky cutting rules, but multiple competing views exist regarding the relevance and availability of literature on the topic.
Contextual Notes
Some participants express uncertainty about the current academic focus on Cutkosky rules and the availability of resources, indicating a potential gap in contemporary literature.
.. the young ones? usually say they've never used it nor looked into it closely.