Probing Baryogenesis with Displaced Vertices at the LHC
arXiv:1409.6729 · doi:10.1007/JHEP02(2015)049
Abstract
The generation of the asymmetric cosmic baryon abundance requires a departure from thermal equilibrium in the early universe. In a large class of baryogenesis models, the baryon asymmetry results from the out-of-equilibrium decay of a new, massive particle. We highlight that in the interesting scenario where this particle has a weak scale mass, this out-of-equilibrium condition requires a proper decay length larger than O(1) mm. Such new fields are within reach of the LHC, at which they can be pair produced leaving a distinctive, displaced-vertex signature. This scenario is realized in the recently proposed mechanism of baryogenesis where the baryon asymmetry is produced through the freeze-out and subsequent decay of a meta-stable weakly interacting massive particle ("WIMP baryogenesis"). In analogy to missing energy searches for WIMP dark matter, the LHC is an excellent probe of these new long-lived particles responsible for baryogenesis via the low-background displaced vertex channel. In our paper, we estimate the limits on simplified models inspired by WIMP baryogenesis from two of the most sensitive collider searches by CMS and ATLAS with 8 TeV LHC data. We also estimate the LHC reach at 13 TeV using current strategies, and demonstrate that O(10) improvements in cross-section limits can be achieved by requiring two displaced vertices while lowering kinematic thresholds. For meta-stable WIMPs produced through electroweak interactions, the high luminosity LHC is sensitive to masses up to 2.5 TeV for lifetimes around 1 cm, while for singlets pair-produced through the off-shell-Higgs portal, the LHC is sensitive to production cross sections of O(50) ab for benchmark masses around 150 GeV. Our analysis and proposals also generally apply to displaced vertex signatures from other new physics such as hidden valley models, twin Higgs models and displaced supersymmetry.
arXiv comment31 pages, 14 figures, 2 tables. Corrected issue with references
References in corpus (40)
- Planck 2013 results. XVI. Cosmological parameters
- A Brief Introduction to PYTHIA 8.1
- Parton distributions for the LHC
- FeynRules 2.0 - A complete toolbox for tree-level phenomenology
- MadGraph 5 : Going Beyond
- Out Of This World Supersymmetry Breaking
- R-parity violating supersymmetry
- HIGGS BOSON PRODUCTION AT THE LHC
- Electric dipole moments as probes of new physics
- Leptogenesis for Pedestrians
- The Twin Higgs: Natural Electroweak Breaking from Mirror Symmetry
- Theory of neutrinoless double beta decay
- Simplified Models for LHC New Physics Searches
- The Tevatron at the Frontier of Dark Matter Direct Detection
- The Production of Charginos/Neutralinos and Sleptons at Hadron Colliders
- Constraints on Light Majorana Dark Matter from Colliders
- Maverick dark matter at colliders
- Phenomenology of Hidden Valleys at Hadron Colliders
- QCD radiation in the production of heavy colored particles at the LHC
- Neutrinoless double beta decay and neutrino physics
- Exploring the Higgs portal
- Possible Signals of Wino LSP at the Large Hadron Collider
- Massive Doublet Leptons
- Signatures of long-lived gluinos in split supersymmetry
- Displaced Supersymmetry
- LHC: Standard Higgs and Hidden Higgs
- A WIMPy Baryogenesis Miracle
- Falsifying High-Scale Leptogenesis at the LHC
- Search for a light Higgs boson decaying to long-lived weakly-interacting particles in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
- Dynamical R-Parity Violation
- Search in leptonic channels for heavy resonances decaying to long-lived neutral particles
- LHC Searches for Non-Chiral Weakly Charged Multiplets
- Higgs Couplings and Naturalness in -SUSY
- Natural Baryogenesis from Unnatural Supersymmetry
- Implications of Flavor Dynamics for Fermion Triplet Leptogenesis
- Exploring a Dark Sector Through the Higgs Portal at a Lepton Collider
- Testing Higgs portal dark matter via fusion at a linear collider
- Cloistered Baryogenesis
- Weak Scale Baryogenesis in a Supersymmetric Scenario with R-parity violation
- Displaced Vertices from X-ray Lines
Cited by in corpus (73)
- Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
- Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
- Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb
- Emerging Jets
- Fusing Vectors into Scalars at High Energy Lepton Colliders
- Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at TeV with the ATLAS detector
- Expression of Interest for the CODEX-b Detector
- Searching for Confining Hidden Valleys at the LHC(b)
- Search for long-lived particles produced in collisions at TeV that decay into displaced hadronic jets in the ATLAS muon spectrometer
- Shedding Light on Neutrino Masses with Dark Forces
- Twin Baryogenesis
- The Fate of Long-Lived Superparticles with Hadronic Decays after LHC Run 1
- The Vector-like Twin Higgs
- Search for long-lived neutral particles in collisions at = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter
- A Review of WIMP Baryogenesis Mechanisms
- Searches for Long-Lived Particles at the Future FCC-ee
- Probing Leptogenesis with the Cosmological Collider
- Analysis of Long Lived Particle Decays with the MATHUSLA Detector
- Search for long-lived particles using displaced jets in proton-proton collisions at 13 TeV
- Search for long-lived particles decaying into displaced jets in proton-proton collisions at 13 TeV
- Majorana vs Pseudo-Dirac Neutrinos at the ILC
- New Physics Opportunities for Long-Lived Particles at Electron-Proton Colliders
- Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in collisions at TeV with the ATLAS detector
- Data-driven Model-independent Searches for Long-lived Particles at the LHC
- Phenomenology of a Long-Lived LSP with R-Parity Violation
- Odd Top Partners at the LHC
- Search for long-lived particles with displaced vertices in multijet events in proton-proton collisions at 13 TeV
- Majorana neutrino decay in an Effective Approach
- Search for Long-Lived Heavy Neutrinos at the LHC with a VBF Trigger
- Prompt Signals and Displaced Vertices in Sparticle Searches for Next-to-Minimal Gauge Mediated Supersymmetric Models
- The see-saw portal at future Higgs Factories
- Probing right-handed neutrinos dipole operators
- Simplified Models for Displaced Dark Matter Signatures
- Search for long-lived particles decaying in the CMS endcap muon detectors in proton-proton collisions at 13 TeV
- Long Live the Higgs Factory: Higgs Decays to Long-Lived Particles at Future Lepton Colliders
- Enhancing Sensitivities to Long-lived Particles with High Granularity Calorimeters at the LHC
- Beyond the Standard Model physics at CLIC
- Gravitino Dark Matter and low-scale Baryogenesis
- Displaced Vertices from Pseudo-Dirac Dark Matter
- Stopping Quirks at the LHC
- The see-saw portal at future Higgs factories: the role of dimension six operators
- Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at 13 TeV
- Baryogenesis via Particle-Antiparticle Oscillations
- Study of energy deposition patterns in hadron calorimeter for prompt and displaced jets using convolutional neural network
- WIMP Cogenesis for Asymmetric Dark Matter and the Baryon Asymmetry
- Search for neutral long-lived particles in collisions at TeV that decay into displaced hadronic jets in the ATLAS calorimeter
- Minimal flavor violation in the see-saw portal
- Leptogenesis from oscillations and dark matter
- Determining the lifetime of long-lived particles at the HL-LHC
- Dark Matter, Shared Asymmetries, and Galactic Gamma Ray Signals
- Baryogenesis via Mesino Oscillations
- Novel signatures for long-lived particles at the LHC
- New signatures and limits on R-parity violation from resonant squark production
- Baryogenesis through Asymmetric Reheating in the Mirror Twin Higgs
- Baryogenesis and Dark Matter from Freeze-In
- LHC Phenomenology of Dark Matter with a Color-Octet Partner
- LHC Signatures of WIMP-triggered Baryogenesis
- Dark Freeze-out Cogenesis
- Search for long-lived particles produced in association with a Z boson in proton-proton collisions at = 13 TeV
- LHC phenomenology and baryogenesis in supersymmetric models with a baryon number
- Freeze-in and Freeze-out of Dark Matter with Charged Long-lived Partners
- Search for light long-lived particles decaying to displaced jets in proton-proton collisions at = 13.6 TeV
- Long-Lived, Colour-Triplet Scalars from Unnaturalness
- Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using collisions at TeV
- Detector-size Upper Bounds on Dark Hadron Lifetime from Cosmology
- Probing displaced (dark)photons from low reheating freeze-in at the LHC
- Long-lived Colored Scalars at the LHC
- T-odd anomalous interactions of the top-quark at the Large Hadron Collider
- Search for long-lived particles using out-of-time trackless jets in proton-proton collisions at = 13 TeV
- Direct signals from electroweak singlets through the Higgs portal
- Multi-track Displaced Vertices at B-Factories
- Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in collisions at TeV
- Search for b hadron decays to long-lived particles in the CMS endcap muon detectors