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Some remarks on the renormalization constants and the bound-state condition

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Il Nuovo Cimento (1955-1965)

Summary

We consider different examples of field theories, superrenormalizable, renormalizable and nonrenormalizable ones, in order to evaluate the renormalization constantZ of the vertex between a bound state and the component particles. In ladder approximation, some properties of theZ’s are examined, with particular regard to the possibility of the cut-off factorization.

Riassunto

Si considerano diversi esempi di teorie di campo, super-rinormalizzabili, rinormalizzabili e non rinormalizzabili, per calcolare la costanteZ che rinormalizza il vertice tra tra stato legato e le particelle componenti. In approssimazione a gradino, si esaminano alcune proprietá della quantitàZ, in particolare per quel che riguarda la possibilità di fattorizzare il fattore di taglio.

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On leave from the Istituto di Fisica dell’Universita, Trieste.

On leave from Centre d’Etudes Nucléaires de Saclay, Gif-sur-Yvette (S.-et-O.).

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Furlan, G., Mahoux, G. Some remarks on the renormalization constants and the bound-state condition. Nuovo Cim 36, 215–235 (1965). https://doi.org/10.1007/BF02750674

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  • DOI: https://doi.org/10.1007/BF02750674

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