Impact of the 125 GeV Higgs boson on the singlet fermion dark matter searches at the LHC

Abstract

The search for singlet fermion dark matter at high-energy colliders is commonly analyzed with a singlet scalar mediator, which however violates the standard model (SM) gauge invariance, renormalizability and unitarity. These problems can be cured by introducing a mixing between the singlet scalar $s$ and the SM Higgs boson $h$. Thus one has to consider two scalar mediators $h_1$ and $h_2$, where $h_1$ is identified as the discovered 125 GeV Higgs boson. As a specific example, we consider the dark matter (DM) search in the $t\bar{t}+E_T^{\text{miss}}$ channel. According to the masses of dark matter and two scalar mediators, we classify the process into four cases. By investigating the total cross sections and differential distributions, we find that the contribution of the 125~GeV Higgs boson $h_1$ cannot be neglected in all cases and can even dominate once $h_1$ is on-shell in dark matter production. Further, we study the impact of $h_1$ on the LHC bounds of dark matter searches in the hadronic and semileptonic channels with the integrated luminosity of $36{\text{fb}}^{-1}$. Finally we make a brief comment that $h_1$ should be also considered in the vector DM search at high-energy colliders.

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References in corpus (64)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• FastJet user manual
• Asymptotic formulae for likelihood-based tests of new physics
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Confidence Level Computation for Combining Searches with Small Statistics
• Results from a search for dark matter in the complete LUX exposure
• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• First Dark Matter Search Results from the XENON1T Experiment
• Dark matter direct detection rate in a generic model with micrOMEGAs2.2
• Simplified Models for Dark Matter Searches at the LHC
• Minimal Extension of the Standard Model Scalar Sector
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC
• Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector
• Scalar Simplified Models for Dark Matter
• Search for an additional, heavy Higgs boson in the $H\to ZZ$ decay channel at $\sqrt{s}$ = 8 TeV in $pp$ collision data with the ATLAS detector
• Beyond Effective Field Theory for Dark Matter Searches at the LHC
• Dynamics of Perturbations in Double Field Theory & Non-Relativistic String Theory
• Search for a Higgs boson in the mass range from 145 to 1000 GeV decaying to a pair of W or Z bosons
• Searches for invisible decays of the Higgs boson in pp collisions at sqrt(s) = 7, 8, and 13 TeV
• A second Higgs from the Higgs portal
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC, Part II: Complete Analysis for the s-channel
• Higgs Portal Vector Dark Matter : Revisited
• Exploring Resonant di-Higgs production in the Higgs Singlet Model
• Search for the Higgs portal to a singlet fermionic dark matter at the LHC
• LHC Benchmark Scenarios for the Real Higgs Singlet Extension of the Standard Model
• Singlet fermionic dark matter
• Probing the Higgs Portal at the LHC Through Resonant di-Higgs Production
• Constraining Dark Sectors at Colliders: Beyond the Effective Theory Approach
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC Part III: Analysis for the $t$-channel
• Vacuum structure and stability of a singlet fermion dark matter model with a singlet scalar messenger
• Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at sqrt(s) = 13 TeV
• Modified Higgs branching ratios versus CP and lepton flavor violation
• Associated production of Higgs and single top at hadron colliders
• Self-interacting scalar dark matter with local $Z_3$ symmetry
• Singlet Fermionic Dark Matter and the Electroweak Phase Transition
• Resonant Di-Higgs Production in the $b\bar{b}WW$ Channel: Probing the Electroweak Phase Transition at the LHC
• Search for dark matter produced in association with bottom or top quarks in $\sqrt{s}$ = 13 TeV pp collisions with the ATLAS detector
• Search for top squarks and dark matter particles in opposite-charge dilepton final states at $\sqrt{s}=$ 13 TeV
• Benchmarks for Double Higgs Production in the Singlet Extended Standard Model at the LHC
• A comprehensive approach to dark matter studies: exploration of simplified top-philic models
• Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV
• Implications of LHC data on 125GeV Higgs-like boson for the Standard Model and its various extensions
• Search for Higgs boson off-shell production in proton-proton collisions at 7 and 8 TeV and derivation of constraints on its total decay width
• Minimal renormalizable simplified dark matter model with a pseudoscalar mediator
• Beyond the Dark matter effective field theory and a simplified model approach at colliders
• Determining the CP nature of spin-0 mediators in associated production of dark matter and $t\bar{t}$ pairs
• Detection prospects of singlet fermionic dark matter
• Search for Higgs portal DM at the ILC
• Constraining the Strength and CP Structure of Dark Production at the LHC: the Associated Top-Pair Channel
• Search for dark matter produced in association with heavy-flavor quarks in proton-proton collisions at sqrt(s) = 13 TeV
• Collider Constraints and Prospects of a Scalar Singlet Extension to Higgs Portal Dark Matter
• Dark Matter and Dark Force in the Type-I Inert 2HDM with Local U(1)_H Gauge Symmetry
• Two is not always better than one: Single Top Quarks and Dark Matter
• Characterizing Higgs portal dark matter models at the ILC
• Closing up on Dark Sectors at Colliders: from 14 to 100 TeV
• Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM
• Prospects for discovery and spin discrimination of dark matter in Higgs portal DM models and their extensions at 100 TeV $pp$ collider
• Setting limits on Effective Field Theories: the case of Dark Matter
• Dark Matter from Electroweak Single Top Production
• Electroweak interacting dark matter with a singlet scalar portal

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• Dark Higgs Bosons at Colliders
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