English

Spectrum of anomalous dimensions in hypercubic theories

High Energy Physics - Theory 2019-09-19 v2 Statistical Mechanics High Energy Physics - Phenomenology

Abstract

We compute the spectrum of anomalous dimensions of non-derivative composite operators with an arbitrary number of fields nn in the O(N)O(N) vector model with cubic anisotropy at the one-loop order in the ϵ\epsilon-expansion. The complete closed-form expression for the anomalous dimensions of the operators which do not undergo mixing effects is derived and the structure of the general solution to the mixing problem is outlined. As examples, the full explicit solution for operators with up to n=6n=6 fields is presented and a sample of the OPE coefficients is calculated. The main features of the spectrum are described, including an interesting pattern pointing to the deeper structure.

Keywords

Cite

@article{arxiv.1903.04950,
  title  = {Spectrum of anomalous dimensions in hypercubic theories},
  author = {Oleg Antipin and Jahmall Bersini},
  journal= {arXiv preprint arXiv:1903.04950},
  year   = {2019}
}

Comments

22 pages. Matches the published version