English

UV completion of an axial, leptophobic, $Z^\prime$

High Energy Physics - Phenomenology 2020-09-02 v2

Abstract

The ZZ'-portal is one of most popular and well-explored scenarios of dark matter (DM). To avoid the strong constraints coming from dilepton resonance searches at the LHC and direct detection of DM, it is usually required that in addition to being leptophobic, the ZZ' is axially coupled to either the (fermionic) DM or the standard model (SM) quarks. The first possibility has been extensively studied both in the context of simplified model and UV complete scenarios. However, the studies on the second possibiliy are largely confined to simplified models only. Here, we construct the minimal UV completion of these models satisfying both the criteria of leptophobia and purely axial ZZ'-quark coupling. The anomaly cancellation conditions demand highly non-trivial structures, not only in the dark sector, but also in the Higgs sector.

Keywords

Cite

@article{arxiv.1907.11207,
  title  = {UV completion of an axial, leptophobic, $Z^\prime$},
  author = {J. A. Casas and M. Chakraborti and J. Quilis},
  journal= {arXiv preprint arXiv:1907.11207},
  year   = {2020}
}

Comments

15 pages. Improved version with phenomenological implications addressed and references added