English

Shining light through the Higgs portal with $\gamma\gamma$ colliders

High Energy Physics - Phenomenology 2020-11-10 v1

Abstract

High-energy γγ\gamma\gamma colliders constitute a potential running mode of future e+ee^+ e^- colliders such as the ILC and CLIC. We study the sensitivity of a high-energy γγ\gamma\gamma collider to the Higgs portal scenario to a hidden sector above the invisible Higgs decay threshold. We show that such γγ\gamma\gamma collisions could allow to probe the existence of dark sectors through the Higgs portal comparatively more precisely than any other planned collider facility, from the unique combination of sizable cross-section with clean final state and collider environment. In addition, this search could cover the singlet Higgs portal parameter space yielding a first-order electroweak phase transition in the early Universe.

Keywords

Cite

@article{arxiv.2011.03551,
  title  = {Shining light through the Higgs portal with $\gamma\gamma$ colliders},
  author = {Adrian Garcia-Abenza and Jose Miguel No},
  journal= {arXiv preprint arXiv:2011.03551},
  year   = {2020}
}