Dark Matter Searches with a Mono-Z' jet

Abstract

We study collider signatures of a class of dark matter models with a GeV-scale dark Z'. At hadron colliders, the production of dark matter particles naturally leads to associated production of the Z', which can appear as a narrow jet after it decays hadronically. Contrary to the usual mono-jet signal from initial state radiation, the final state radiation of dark matter can generate the signature of a mono-Z' jet plus missing transverse energy. Performing a jet-substructure analysis to tag the Z' jet, we show that these Z' jets can be distinguished from QCD jets at high significance. Compared to mono-jets, a dedicated search for mono-Z' jet events can lead to over an order of magnitude stronger bounds on the interpreted dark matter-nucleon scattering cross sections.

23 pages, 9 figures; journal version

References in corpus (19)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Herwig++ Physics and Manual
• Secluded WIMP Dark Matter
• Search for Low-Mass WIMPs with SuperCDMS
• The Tevatron at the Frontier of Dark Matter Direct Detection
• Non-Abelian Dark Sectors and Their Collider Signatures
• Phenomenology of Hidden Valleys at Hadron Colliders
• Dark Matter Search Results from the PICO-2L C${}_3$F${}_8$ Bubble Chamber
• Constraints on Low-Mass WIMP Interactions on 19F from PICASSO
• Emerging Jets
• Results on low mass WIMPs using an upgraded CRESST-II detector
• Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 8 TeV
• LHC and Tevatron bounds on the dark matter direct detection cross-section for vector mediators
• 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
• Hidden GeV-scale interactions of quarks
• Majorana Dark Matter with a Coloured Mediator: Collider vs Direct and Indirect Searches
• The SIMPLE Phase II Dark Matter Search
• Measuring the Dark Force at the LHC
• Dark Matter on Top

Cited by in corpus (29)

• Dark Matter Benchmark Models for Early LHC Run-2 Searches: Report of the ATLAS/CMS Dark Matter Forum
• Review of LHC Dark Matter Searches
• Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
• GeV-Scale Thermal WIMPs: Not Even Slightly Dead
• Discovering Inelastic Thermal-Relic Dark Matter at Colliders
• Simplified Models vs. Effective Field Theory Approaches in Dark Matter Searches
• How to save the WIMP: global analysis of a dark matter model with two s-channel mediators
• You can hide but you have to run: direct detection with vector mediators
• Tagging a jet from a dark sector with Jet-substructures at colliders
• The Coannihilation Codex
• Mono-W Dark Matter Signals at the LHC: Simplified Model Analysis
• Probing the Dark Sector with Dark Matter Bound States
• Hunting the dark Higgs
• Augury of Darkness: The Low-Mass Dark Z' Portal
• The Pursuit of Dark Matter at Colliders - An Overview
• Mono-Z': searches for dark matter in events with a resonance and missing transverse energy
• Enhancing Dark Matter Annihilation Rates with Dark Bremsstrahlung
• Dark Matter in Anomaly-Free Gauge Extensions
• Spontaneous Freeze Out of Dark Matter From an Early Thermal Phase Transition
• A New Probe of Dark Sector Dynamics at the LHC
• Searching for Boosted Dark Matter via Dark-Strahlung
• Illuminating New Electroweak States at Hadron Colliders
• Actual Physics behind Mono-X
• Hunting for Dark Matter Coannihilation by Mixing Dijet Resonances and Missing Transverse Energy
• Examining the origin of dark matter mass at colliders
• Probing dark gauge boson via Einstein-Cartan portal
• Exploring Four Fermion Contact Couplings of a Dark Fermion and an Electron at Hadron Colliders and Direct Detection Experiments
• Constraining Gluonic Contact Interaction of a Neutrino-philic Dark Fermion at Hadron Colliders and Direct Detection Experiments
• Search for Z' Radiating from the Dark Matter at the LHC