English

Seeking SUSY fixed points in the $4-\epsilon$ expansion

High Energy Physics - Theory 2021-12-22 v1

Abstract

We use the 4ϵ4-\epsilon expansion to search for fixed points corresponding to 2+12+1 dimensional N\mathcal{N}=1 Wess-Zumino models of NΦN_{\Phi} scalar superfields interacting through a cubic superpotential. In the NΦ=3N_{\Phi}=3 case, we classify all SUSY fixed points that are perturbatively unitary. In the NΦ=4N_{\Phi}=4 and NΦ=5N_{\Phi}=5 cases, we focus on fixed points where the scalar superfields form a single irreducible representation of the symmetry group (irreducible fixed points). For NΦ=4N_{\Phi}=4 we show that the S5 invariant super Potts model is the only irreducible fixed point where the four scalar superfields are fully interacting. For NΦ=5N_{\Phi}=5, we go through all Lie subgroups of O(5) and then use the GAP system for computational discrete algebra to study finite subgroups of O(5) up to order 800. This analysis gives us three fully interacting irreducible fixed points. Of particular interest is a subgroup of O(5) that exhibits O(3)/Z2 symmetry. It turns out this fixed point can be generalized to a new family of models, with NΦ=N(N1)21N_{\Phi}=\frac{\rm N(N-1)}{2}-1 and O(N)/Z2 symmetry, that exists for arbitrary integer N3\geq3.

Keywords

Cite

@article{arxiv.2107.14515,
  title  = {Seeking SUSY fixed points in the $4-\epsilon$ expansion},
  author = {Pedro Liendo and Junchen Rong},
  journal= {arXiv preprint arXiv:2107.14515},
  year   = {2021}
}

Comments

29 pages, 5 tables, 1 figure

R2 v1 2026-06-24T04:40:54.513Z