English

Higgs boson emerging from the dark

High Energy Physics - Phenomenology 2020-07-09 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment

Abstract

We propose a new non-thermal mechanism of dark matter production based on vacuum misalignment. A global XX-charge asymmetry is generated at high temperatures, under which both the will-be Higgs and the dark matter are charged. At lower energies, the vacuum changes alignment and breaks the U(1)XU(1)_X, leading to the emergence of the Higgs and of a fraction of charge asymmetry stored in the stable dark matter relic. This mechanism can be present in a wide variety of models based on vacuum misalignment, and we demonstrate it in a composite Higgs template model, where all the necessary ingredients are naturally present. A light pseudo-scalar η\eta is always predicted, with interesting implications for cosmology, future supernova observations and exotic ZγηZ \to \gamma \eta decays.

Keywords

Cite

@article{arxiv.1911.12130,
  title  = {Higgs boson emerging from the dark},
  author = {Chengfeng Cai and Hong-Hao Zhang and Giacomo Cacciapaglia and Mads T. Frandsen and Martin Rosenlyst},
  journal= {arXiv preprint arXiv:1911.12130},
  year   = {2020}
}

Comments

6 pages, 1 figure, 1 table; accepted for publication in Physical Review Letters

R2 v1 2026-06-23T12:28:56.225Z