The Gell-Mann - Low function in single-charge scalar quantum field theory
Avdeeva G.M., Belavin A.A.
The first three terms of the Gell-Mann — Low function are obtained in the λφ1* theory. It is shown that the "zero-charge" situation remains in force when terms up to λ2[Xln(X/k)]k are taken into account.
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![](/ps/1569/article_24044_800_head.png "The first three terms of the Gell-Mann — Low function are obtained in the λφ<sup>1</sup>* theory. It is shown that the "zero-charge" situation remains in force when terms up to λ<sup>2</sup>[Xln(X/k)]<sup>k</sup> are taken into account.")