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Perturbation theory in the Federbush model: Induced interaction terms

✍ Scribed by Peter Hählen

Book ID
116141826
Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
317 KB
Volume
116
Category
Article
ISSN
0550-3213

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📜 SIMILAR VOLUMES

An example of the mandelstam representat
An example of the mandelstam representation in perturbation theory
✍ Paul Federbush 📂 Article 📅 1965 🏛 Elsevier Science 🌐 English ⚖ 113 KB

A Feynman diagram that has three particle intermediate states in all channels is studied. Choosing special values of the masses, in particular taking infrared divergent terms as certain masses go to zero, we explicitly calculate the spectral functions in this limit. They are nonzero in all three reg