Singlet-Doublet Dark Matter Freeze-in: LHC displaced signatures versus cosmology

Abstract

We study the Singlet-Doublet dark matter model in the regime of feeble couplings, where the dark matter abundance is obtained via the freeze-in mechanism. As a consequence of the small couplings, the heavier particles in the model are long-lived with decay length at typical scales of collider experiments. We analyse the collider signatures of the model, characterised by displaced $h$ and $Z$ bosons plus missing momentum, employing current LHC searches for displaced vertices and missing energy to significantly constrain the parameter space of the model. We also take into account the cosmological bounds relevant for our light dark matter candidate arising from Lyman-$\alpha$ forest constraints. Our analysis emphasises the interplay between displaced signatures at the LHC and cosmology for dark matter candidates whose relic abundance is obtained through the freeze-in mechanism.

42 pages, 14 figures; v2: minor discussions, clarifications, and references added

References in corpus (43)

• 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
• The Dawn of FIMP Dark Matter: A Review of Models and Constraints
• micrOMEGAs5.0 : freeze-in
• Can sterile neutrinos be the dark matter?
• Can sterile neutrinos be ruled out as warm dark matter candidates?
• Detection of sub-MeV Dark Matter with Three-Dimensional Dirac Materials
• Neutralino Dark Matter at 14 and 100 TeV
• Detection of Light Dark Matter With Optical Phonons in Polar Materials
• The velocity function in the local environment from LCDM and LWDM constrained simulations
• Constraints from Ly-$\alpha$ forests on non-thermal dark matter including resonantly-produced sterile neutrinos
• Combined search for electroweak production of charginos and neutralinos in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in $\sqrt{s}$ = 13 TeV $pp$ collisions with the ATLAS detector
• Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 8 TeV
• Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at sqrt(s) = 8 TeV
• Scattering, Damping, and Acoustic Oscillations: Simulating the Structure of Dark Matter Halos with Relativistic Force Carriers
• Dark matter and Higgs boson physics
• Cold keV dark matter from decays and scatterings
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: Basic Concepts and Subtle Features
• Dark Matter Freeze-in Production in Fast-Expanding Universes
• keV Sterile Neutrino Dark Matter from Singlet Scalar Decays: The Most General Case
• Dark matter-radiation interactions: the impact on dark matter haloes
• Probing the scotogenic FIMP at the LHC
• Top-philic dark matter within and beyond the WIMP paradigm
• The Fate of Long-Lived Superparticles with Hadronic Decays after LHC Run 1
• LHC Tests of Light Neutralino Dark Matter without Light Sfermions
• A fresh look into the interacting dark matter scenario
• Recommendations of the LHC Dark Matter Working Group: Comparing LHC searches for heavy mediators of dark matter production in visible and invisible decay channels
• ETHOS -- an effective theory of structure formation: predictions for the high-redshift Universe -- abundance of galaxies and reionization
• Cold light dark matter in extended seesaw models
• Charged Fermions Below 100 GeV
• Long-Lived Unstable Superparticles at the LHC
• Search for new long-lived particles at $\sqrt{s}=$ 13 TeV
• 2HDM portal for Singlet-Doublet Dark Matter
• On Minimal Dark Matter coupled to the Higgs
• Return of the X-rays: A New Hope for Fermionic Dark Matter at the keV Scale
• Warm Dark Matter and Cosmic Reionization
• Prospects for indirect detection of frozen-in dark matter
• The minimal fermionic model of electroweak baryogenesis
• MeV Right-handed Neutrinos and Dark Matter
• Heavy stable charged tracks as signatures of non-thermal dark matter at the LHC : a study in some non-supersymmetric scenarios
• Displaced Dark Matter at Colliders
• LHC Phenomenology of Dark Matter with a Color-Octet Partner

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• Lower Mass Bounds on FIMP Dark Matter Produced via Freeze-In
• Hunting wino and higgsino dark matter at the muon collider with disappearing tracks
• Relativistic Freeze-in
• Search for long-lived particles using displaced jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Neutrino Portal to FIMP Dark Matter with an Early Matter Era
• Interplay of super-WIMP and freeze-in production of dark matter
• A feeble window on leptophilic dark matter
• Scalar assisted singlet doublet fermion dark matter model and electroweak vacuum stability
• Constraining FIMP from the structure formation of the Universe: analytic mapping from $m_{\mathrm{WDM}}$
• Displaced new physics at colliders and the early universe before its first second
• Dark Matter Abundance from Sequential Freeze-in Mechanism
• Probing Dark Matter freeze-in with long-lived particle signatures: MATHUSLA, HL-LHC and FCC-hh
• A dark clue to seesaw and leptogenesis in a pseudo-Dirac singlet doublet scenario with (non)standard cosmology
• Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
• Probing Dark Matter with Disappearing Tracks at the LHC
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• Long live the Higgs portal!
• Self-interacting freeze-in dark matter in a singlet doublet scenario
• Linking the pseudo-Dirac dark matter and radiative neutrino mass in a singlet doublet scenario
• Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• An extended gauge mediation for muon $(g-2)$ explanation
• WIMP and FIMP dark matter in the inert doublet plus singlet model
• Baryogenesis and Dark Matter from Freeze-In
• Probing feebly interacting dark matter with monojet searches
• Testing freeze-in with axial and vector $Z^{\prime }$ bosons
• A long-lived stop with freeze-in and freeze-out dark matter in the hidden sector
• Demystifying Freeze-In Dark Matter at the LHC
• Freeze-in and Freeze-out of Dark Matter with Charged Long-lived Partners
• Evaluating Lyman-$\alpha$ Constraints for General Dark-Matter Velocity Distributions: Multiple Scales and Cautionary Tales
• On the challenges of searching for GeV-scale long-lived particles at the LHC
• Search for light long-lived particles decaying to displaced jets in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
• Jet substructure probe to unfold singlet-doublet dark matter in the presence of non-standard cosmology
• Anatomy of singlet-doublet dark matter relic: annihilation, co-annihilation, co-scattering, and freeze-in
• Dark Matter Freeze-In and Small-Scale Observables: Novel Mass Bounds and Viable Particle Candidates
• Potential for probing three-body decays of Long-Lived Particles with MATHUSLA
• Collider fingerprints of freeze-in dark matter produced during the fast expansion phase of Universe
• The E6 route to multicomponent dark matter
• Seasons of Dark Matter Freeze-In Shaped by the Weather of the Early Universe
• Singlet-Doublet Self-interacting Dark Matter and Radiative Neutrino Mass
• LHC-friendly freeze-in dark matter via Higgs portal
• Searching for dark radiation at the LHC
• Impact of conversion-driven processes on singlet-doublet Majorana dark matter relic
• Gravitational Wave Probe of Singlet-Doublet Dark Matter Induced Radiative Neutrino Mass