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Quantum field model with unrenormalizable interaction

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Abstract

The unitary relativistic model of quantum field theory with rapidly increasing spectral function (i.e. it grows faster than any finite power of momentum) is investigated. It is shown that there exist nontrivial Lagrangians, leading to this kind of spectral functions and allowing to construct the local theory without the ultraviolet divergences on their basis. In this theory theS-matrix is unitary and not equal identically to unity.

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Volkov, M.K. Quantum field model with unrenormalizable interaction. Commun.Math. Phys. 7, 289–304 (1968). https://doi.org/10.1007/BF01646662

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  • DOI: https://doi.org/10.1007/BF01646662

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