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arXiv · 0811.2295

Renormalization and resummation in the O(N) model

A. Jakovac
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Abstract

In the O(N) model for the large N expansion one needs resummation which makes the renormalization of the model difficult. In the paper it is discussed, how can one perform a consistent perturbation theory at zero as well as at finite temperature with the help of momentum dependent renormalization schemes.

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A. Jakovac. 2008-11-14. Renormalization and resummation in the O(N) model. https://doi.org/10.1016/j.nuclphysa.2009.01.064

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