LHC Dark Matter Working Group: Next-generation spin-0 dark matter models

Abstract

Dark matter (DM) simplified models are by now commonly used by the ATLAS and CMS Collaborations to interpret searches for missing transverse energy ($E_T^{\mathrm{miss}}$). The coherent use of these models sharpened the LHC DM search program, especially in the presentation of its results and their comparison to DM direct-detection (DD) and indirect-detection (ID) experiments. However, the community has been aware of the limitations of the DM simplified models, in particular the lack of theoretical consistency of some of them and their restricted phenomenology leading to the relevance of only a small subset of $E_T^{\mathrm{miss}}$ signatures. This document from the LHC Dark Matter Working Group identifies an example of a next-generation DM model, called $\text{2HDM+a}$, that provides the simplest theoretically consistent extension of the DM pseudoscalar simplified model. A comprehensive study of the phenomenology of the $\text{2HDM+a}$ model is presented, including a discussion of the rich and intricate pattern of mono-$X$ signatures and the relevance of other DM as well as non-DM experiments. Based on our discussions, a set of recommended scans are proposed to explore the parameter space of the $\text{2HDM+a}$ model through LHC searches. The exclusion limits obtained from the proposed scans can be consistently compared to the constraints on the $\text{2HDM+a}$ model that derive from DD, ID and the DM relic density.

Change of CERN report ID in v2

References in corpus (109)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Particle Dark Matter: Evidence, Candidates and Constraints
• Parton distributions for the LHC Run II
• Parton distributions with LHC data
• 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
• The Kinematics of the Ultra-Faint Milky Way Satellites: Solving the Missing Satellite Problem
• The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit
• First Dark Matter Search Results from the XENON1T Experiment
• Implication of neutrino backgrounds on the reach of next generation dark matter direct detection experiments
• Constraints on Dark Matter from Colliders
• m_T2 : the truth behind the glamour
• Observation of the rare $B_s^0\to {\mu }^{+}{\mu }^{-}$ decay from the combined analysis of CMS and LHCb data
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• B_{s,d} -> l+ l- in the Standard Model with Reduced Theoretical Uncertainty
• Combined measurements of Higgs boson production and decay using up to $80$ fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=$ 13 TeV collected with the ATLAS experiment
• Physics reach of the XENON1T dark matter experiment
• Missing Energy Signatures of Dark Matter at the LHC
• Combined measurements of Higgs boson couplings in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Updated NNLO QCD predictions for the weak radiative B-meson decays
• The Tevatron at the Frontier of Dark Matter Direct Detection
• Constraints on Light Majorana Dark Matter from Colliders
• Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum
• Exotic Decays of the 125 GeV Higgs Boson
• Weak Radiative Decays of the B Meson and Bounds on $M_{H^{\pm }}$ in the Two-Higgs-Doublet Model
• Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
• Review of LHC Dark Matter Searches
• Stellar Velocities in the Carina, Fornax, Sculptor and Sextans dSph Galaxies: Data from the Magellan/MMFS Survey
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and effective lifetime and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays
• Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Constraints on new phenomena via Higgs boson couplings and invisible decays with the ATLAS detector
• Scalar Simplified Models for Dark Matter
• Anatomy of the Inert Two Higgs Doublet Model in the light of the LHC and non-LHC Dark Matter Searches
• Basis-independent methods for the two-Higgs-doublet model III: The CP-conserving limit, custodial symmetry, and the oblique parameters S, T, U
• Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at sqrt(s)=8 TeV with the ATLAS detector
• Searches for invisible decays of the Higgs boson in pp collisions at sqrt(s) = 7, 8, and 13 TeV
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC, Part II: Complete Analysis for the s-channel
• Unitarity and Monojet Bounds on Models for DAMA, CoGeNT, and CRESST-II
• MadDM v.3.0: a Comprehensive Tool for Dark Matter Studies
• Status of the Inert Doublet Model and the Role of multileptons at the LHC
• Singlet-Doublet Dark Matter
• Search for a charged Higgs boson in pp collisions at sqrt(s) = 8 TeV
• Search for new physics in final states with an energetic jet or a hadronically decaying W or Z boson and transverse momentum imbalance at $\sqrt{s}=$ 13 TeV
• Inert Doublet Model in the light of LHC and astrophysical data
• Inert Doublet Model in light of LHC Run I and astrophysical data
• Search for additional neutral MSSM Higgs bosons in the $\tau \tau$ final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Simplified dark matter models with two Higgs doublets: I. Pseudoscalar mediators
• A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model
• Dilepton Signals in the Inert Doublet Model
• Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies
• Dilepton constraints in the Inert Doublet Model from Run 1 of the LHC
• Search for heavy resonances decaying into $WW$ in the $e\nu \mu \nu$ final state in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Collider searches for dark matter in events with a Z boson and missing energy
• Pseudoscalar Portal Dark Matter
• Lifting degeneracies in Higgs couplings using single top production in association with a Higgs boson
• Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a $Z$ boson in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Search for heavy $ZZ$ resonances in the ${\ell }^{+}{\ell }^{-}{\ell }^{+}{\ell }^{-}$ and ${\ell }^{+}{\ell }^{-}\nu \bar{\nu }$ final states using proton proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Robust collider limits on heavy-mediator Dark Matter
• Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collision data with the ATLAS detector
• Searching for Dark Matter at the LHC with a Mono-Z
• Search for heavy resonances decaying into a $W$ or $Z$ boson and a Higgs boson in final states with leptons and $b$-jets in 36 fb${}^{-1}$ of $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
• Bisection-based asymmetric MT2 computation: a higher precision calculator than existing symmetric methods
• Associated production of Higgs and single top at hadron colliders
• Pseudoscalar Mediators: A WIMP model at the Neutrino Floor
• Loop corrections to dark matter direct detection in a pseudoscalar mediator dark matter model
• Simplified Models for Dark Matter Face their Consistent Completions
• Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple $b$-jets with the ATLAS detector
• Exploring collider signatures of the inert Higgs doublet model
• Next-to-Leading Order Predictions for Dark Matter Production at Hadron Colliders
• Bounds on Dark Matter Interactions with Electroweak Gauge Bosons
• 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 charged Higgs bosons produced in association with a top quark and decaying via $H^{\pm }\to \tau \nu$ using $pp$ collision data recorded at $\sqrt{s}=13$ TeV by the ATLAS detector
• Looking through the Pseudo-Scalar Portal into Dark Matter: Novel Mono-Higgs and Mono-$Z$ Signatures at LHC
• Four Tops for LHC
• Exploring the Inert Doublet Model through the dijet plus missing transverse energy channel at the LHC
• Heavy Higgs Bosons at 14 TeV and 100 TeV
• Direct Detection of Dark Matter with MadDM v.2.0
• Self-consistent Dark Matter Simplified Models with an s-channel scalar mediator
• Search for Dark Matter Produced in Association with a Higgs Boson Decaying to $b\bar{b}$ using 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS Detector
• Mono-W Dark Matter Signals at the LHC: Simplified Model Analysis
• Note on Custodial Symmetry in the Two-Higgs-Doublet Model
• Closing the Wedge: Search Strategies for Extended Higgs Sectors with Heavy Flavor Final States
• Recommendations of the LHC Dark Matter Working Group: Comparing LHC searches for heavy mediators of dark matter production in visible and invisible decay channels
• Search for standard model production of four top quarks with same-sign and multilepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• LHC constraints on gauge boson couplings to dark matter
• Search for beyond the standard model Higgs bosons decaying into a $\mathrm{b}\overline{\mathrm{b}}$ pair in pp collisions at $\sqrt{s}=$ 13 TeV
• Collider constraints on light pseudoscalars
• Dark matter production in association with a single top-quark at the LHC in a two-Higgs-doublet model with a pseudoscalar mediator
• Determining the structure of dark-matter couplings at the LHC
• Search for new physics in events with a leptonically decaying Z boson and a large transverse momentum imbalance in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• 2HDM portal for Singlet-Doublet Dark Matter
• Observability of Inert Scalars at the LHC
• Search for dark matter in association with a Higgs boson decaying to two photons at $\sqrt{s}$= 13 TeV with the ATLAS detector
• On Mono-W Signatures in Spin-1 Simplified Models
• Determining the Sign of the Z-Penguin Amplitude
• Two Higgs Doublet Dark Matter Portal
• Search for dark matter produced in association with a Higgs boson decaying to $\gamma \gamma$ or ${\tau }^{+}{\tau }^{-}$ at $\sqrt{s}=$ 13 TeV
• Vector Boson Fusion in the Inert Doublet Model
• Revisiting the direct detection of dark matter in simplified models
• Two is not always better than one: Single Top Quarks and Dark Matter
• Simplified dark matter top-quark interactions at the LHC
• Simplified DM models with the full SM gauge symmetry : the case of $t$-channel colored scalar mediators
• Search for dark matter particles produced in association with a top quark pair at $\sqrt{s}=$ 13 TeV
• Dark Matter from Electroweak Single Top Production
• S-Channel Dark Matter Simplified Models and Unitarity
• Universal Properties of Pseudoscalar Mediators
• Scalar production and decay to top quarks including interference effects at NLO in QCD in an EFT approach

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• Constraints on mediator-based dark matter and scalar dark energy models using $\sqrt{s}=13$ TeV $pp$ collision data collected by the ATLAS detector
• Glueball scattering cross section in lattice SU(2) Yang-Mills theory
• Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for dark matter produced in association with a Standard Model Higgs boson decaying into $b$-quarks using the full Run 2 dataset from the ATLAS detector
• Testing scalar versus vector dark matter
• Heavy dark matter particle annihilation in dwarf spheroidal galaxies: radio signals at the SKA telescope
• Type I + II Seesaw in a Two Higgs Doublet Model
• Spotting hidden sectors with Higgs binoculars
• Status of searches for electroweak-scale supersymmetry after LHC Run 2