Boosting invisible searches via ZH : From the Higgs boson to dark matter simplified models

Higgs boson production in association with a $Z$-boson at the LHC is analysed, both in the Standard Modeland in Simplified Model extensions for Dark Matter. We focus on $H\rightarrow$invisibles searches and show that loop-induced components for both the signal and background present phenomenologically relevant contributions to the $\mathcal{BR}(H\rightarrow\textit{inv})$ limits. In addition, the constraining power of this channel to Simplified Models for Dark Matter with scalar and pseudo-scalar mediators $\phi$ and $A$ is discussed and compared with non-collider constraints. We find that with $100~fb^{-1}$ of LHC data, this channel provides competitive constraints to the non-collider bounds, for most of the parameter space we consider, bounding the universal Standard Modelfermion-mediator strength at $g_v < 1$ for moderate masses in the range of ${100~\text{GeV}

Keywords:

• Higgs boson
• Parameter space
• Particle physics
• Large Hadron Collider
• Physics
• Quantum electrodynamics
• Scalar (physics)
• Dark matter
• Standard Model
• Physics beyond the Standard Model
• Effective field theory

• Correction
• Source
• Cite
• Save