Abstract
We show that in the ϕ 42 theory, the physical mass and the two-bodyS-matrix are Borel summable in the coupling constant λ at λ=0.
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Communicated by K. Osterwalder
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Eckmann, J.P., Epstein, H. Borel summability of the mass and theS-matrix in ϕ4 models. Commun.Math. Phys. 68, 245–258 (1979). https://doi.org/10.1007/BF01221126
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DOI: https://doi.org/10.1007/BF01221126