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- W2950505961 abstract "In this work a class of massive scalar field theories with self-interactions described by a general potential is studied. Under the sole condition that the potential admits the Fourier representation, it is shown that such theories may be mapped into a standard field theory, in which the interaction of the new fields is a polynomial of fourth degree. With some restrictions, this mapping allows the perturbative treatment of models that are otherwise intractable with standard field theoretical methods. A nonperturbative approach to these theories is attempted. The original scalar field is integrated out exactly at the price of introducing auxiliary vector fields. The latter are treated in a mean field theory approximation. The singularities that arise after the elimination of the auxiliary fields are cured using the dimensional regularization. The expression of the counterterms to be subtracted is computed." @default.
- W2950505961 created "2019-06-27" @default.
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- W2950505961 date "2009-12-11" @default.
- W2950505961 modified "2023-09-27" @default.
- W2950505961 title "On a possible approach to general field theories with nonpolynomial interactions" @default.
- W2950505961 hasPublicationYear "2009" @default.
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