Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal

Abstract

We study the cosmology and LHC phenomenology of a consistent strongly interacting dark sector coupled to Standard Model particles through a generic vector mediator. We lay out the requirements for the model to be cosmologically viable, identify annihilations into dark vector mesons as the dominant dark matter freeze-out process and discuss bounds from direct detection. At the LHC the model predicts dark showers, which can give rise to semi-visible jets or displaced vertices. Existing searches for di-jet resonances and for missing energy mostly probe the parameter regions where prompt decays are expected and constrain our model despite not being optimised for dark showers. We also estimate the sensitivity of dedicated analyses for semi-visible jets and emphasize the complementarity of different search strategies.

28 pages, 8 figures; v2 matches published version

References in corpus (65)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• FastJet user manual
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Dark Matter Search Results from a One Tonne$\times$Year Exposure of XENON1T
• Dispelling the N^3 myth for the Kt jet-finder
• Dark Matter Self-interactions and Small Scale Structure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• Echoes of a Hidden Valley at Hadron Colliders
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Parton distributions with QED corrections
• The SIMP Miracle
• First results from the CRESST-III low-mass dark matter program
• micrOMEGAs5.0 : freeze-in
• Low-Mass Dark Matter Search with the DarkSide-50 Experiment
• The SIMPlest Miracle
• Simplified Models for Dark Matter Searches at the LHC
• Dark Matter Search Results from the PICO-60 C${}_3$F${}_8$ Bubble Chamber
• Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
• Projected Sensitivity of the SuperCDMS SNOLAB experiment
• CheckMATE 2: From the model to the limit
• Dark Matter Search Results from the PICO-2L C${}_3$F${}_8$ Bubble Chamber
• Designing and recasting LHC analyses with MadAnalysis 5
• Low-Mass Dark Matter Search with CDMSlite
• Forbidden Dark Matter
• Towards a public analysis database for LHC new physics searches using MadAnalysis 5
• Emerging Jets
• Review of strongly-coupled composite dark matter models and lattice simulations
• SIMP Spectroscopy
• Semi-visible Jets: Dark Matter Undercover at the LHC
• 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
• Search for supersymmetry in multijet events with missing transverse momentum in proton-proton collisions at 13 TeV
• Global analyses of Higgs portal singlet dark matter models using GAMBIT
• SIMPs through the axion portal
• Visible Effects of Invisible Hidden Valley Radiation
• Cosmology and Accelerator Tests of Strongly Interacting Dark Matter
• The unbearable lightness of being: CDMS versus XENON
• Constraining Dark Sectors with Monojets and Dijets
• Chilly Dark Sectors and Asymmetric Reheating
• LHC Searches for Dark Sector Showers
• Communication with SIMP dark mesons via Z'-portal
• Discerning Secluded Sector gauge structures
• Searching for Confining Hidden Valleys at the LHC(b)
• Cosmic abundances of SIMP dark matter
• Effective Lagrangian approach to vector mesons, their structure and decays${}^{\ast )}$
• SIMP model at NNLO in chiral perturbation theory
• Dynamical Dark Matter from Strongly-Coupled Dark Sectors
• Interplay between scintillation and ionization in liquid xenon Dark Matter searches
• Resolving phenomenological problems with strongly-interacting-massive-particle models with dark vector resonances
• A flavoured dark sector
• The Warped Dark Sector
• Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Dark matter in Hidden Valley models with stable and unstable light dark mesons
• Dark Mesons at the LHC
• Simplified SIMPs and the LHC
• Collider phenomenology of Hidden Valley mediators of spin 0 or 1/2 with semivisible jets
• Vector SIMP dark matter with approximate custodial symmetry
• Hidden strongly interacting massive particles
• Symmetric and Asymmetric Reheating
• Towards resolving strongly-interacting dark sectors at colliders
• Effective Theories of Dark Mesons with Custodial Symmetry
• Detector-size Upper Bounds on Dark Hadron Lifetime from Cosmology
• Phenomenological Constraints on Anomaly-Free Dark Matter Models

Cited by in corpus (38)

• Recasting direct detection limits within micrOMEGAs and implication for non-standard Dark Matter scenarios
• Invisible and displaced dark matter signatures at Belle II
• Perturbative benchmark models for a dark shower search program
• Casting a graph net to catch dark showers
• Glueball scattering cross section in lattice SU(2) Yang-Mills theory
• Long-lived Dark Higgs and Inelastic Dark Matter at Belle II
• Unsupervised Hadronic SUEP at the LHC
• A little theory of everything, with heavy neutral leptons
• Jet Substructure from Dark Sector Showers
• A Theory of Dark Pions
• Low-energy effective description of dark $Sp(4)$ theories
• Resonant Sub-GeV Dirac Dark Matter
• What's Anomalous in LHC Jets?
• Classification of dark pion multiplets as dark matter candidates and collider phenomenology
• New sensitivity of LHC measurements to Composite Dark Matter Models
• Boosting mono-jet searches with model-agnostic machine learning
• Collider constraints on dark mediators
• Exploring Jet Substructure in Semi-visible jets
• Dark showers from Z-dark Z' mixing
• Forecasting dark showers at Belle II
• Dark matter relic density in strongly interacting dark sectors with light vector mesons
• Leptons lurking in semi-visible jets at the LHC
• On the challenges of searching for GeV-scale long-lived particles at the LHC
• Dark Sector Showers in the Lund Jet Plane
• Search for new physics in final states with semi-visible jets or anomalous signatures using the ATLAS detector
• Searching for dark jets with displaced vertices using weakly supervised machine learning
• Semi-visible jets, energy-based models, and self-supervision
• Search for emerging jets in $pp$ collisions at $\sqrt{s}=13.6$ TeV with the ATLAS experiment
• Uncovering tau leptons-enriched semi-visible jets at the LHC
• Unsupervised and lightly supervised learning in particle physics
• Sub-GeV dark matter and multi-decay signatures from dark showers at beam-dump experiments
• Direct Detection of Ultralight Dark Matter via Charged Lepton Flavor Violation
• 2B or not 2B, a study of bottom-quark-philic semi-visible jets
• Wasserstein normalized autoencoder for anomaly detection
• Search for low-mass hidden-valley dark showers with non-prompt muon pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Di-decay signature of new physics particles at intensity frontier experiments
• Theory, phenomenology, and experimental avenues for dark showers: a Snowmass 2021 report
• Event-level variables for semivisible jets using anomalous jet tagging