Dark Higgs Models at the 7 TeV LHC

TL;DR

This paper investigates how 7 TeV LHC data constrains dark Higgs models with a new U(1) gauge boson, revealing significant portions of parameter space can be tested with 15 fb^-1 of data.

Contribution

It provides a detailed analysis of collider and precision observable constraints on dark Higgs models with kinetic mixing at the 7 TeV LHC.

Findings

Most of the model's parameter space can be probed with 15 fb^-1.

Collider data significantly constrains the dark sector parameters.

Electroweak precision tests complement collider constraints.

Abstract

We study how collider data and electroweak precision observables affect the parameter space of models including a new dark force mediated by a massive U(1) gauge boson. It acquires mass via a Higgs mechanism in the dark sector which is connected to the Standard Model through kinetic mixing of the two U(1) gauge bosons and the Higgs potential. We assess the impact of the 7 TeV LHC and show that most of the parameter space of the model can be probed with an integrated luminosity of 15 fb^-1.