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Generalized conditions for the distributional zero-mass limit of renormalized Feynman amplitudes in Minkowski space

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Il Nuovo Cimento A (1965-1970)

Summary

Generalized conditions (rules) are set up for the existence of the distributional zero-mass limit of renormalized Feynman amplitudes inMinkowski space. These rules are generalizations of rules we have set up earlier and hence are applicable to a larger class of graphs. The study is very general as the vanishing masses are led to vanish at different rates. All subtractions of renormalization are carried out directly in momentum space, about the origin, with the degree of divergence of a subtraction coinciding with the dimensionality of the corresponding subdiagram.

Riassunto

Si stabiliscono condizioni generalizzate (regole) per l’esistenza del limite distributivo a massa zero delle ampiezze rinormalizzate di Feynman nello spazio di Minkowski, Queste regole sono generalizzazioni di regole che sono state stabilite precedentemente e quindi sono applicabili ad una classe piú ampia di grafici. Lo studio è molto generale perché le masse si annullano a tassi differenti. Tutte le sottrazioni di rinormalizzazione sono effettuate direttamente nello spazio dei momenti, intorno all’origine, con grado di divergenza di sottrazione coincidente con la dimensione del sottodiagramma corrispondente.

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References

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Work supported by the Department of National Defence Award under CRAD No. 3610-637-F4122.

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Manoukian, E.B. Generalized conditions for the distributional zero-mass limit of renormalized Feynman amplitudes in Minkowski space. Nuov Cim A 92, 273–281 (1986). https://doi.org/10.1007/BF02724244

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  • DOI: https://doi.org/10.1007/BF02724244

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