Exotic Higgs decays into displaced jets at the LHeC
arXiv:2008.09614 · doi:10.1007/JHEP02(2021)161
Abstract
Profiling the Higgs boson requires the study of its non-standard decay modes. In this work we discuss the prospects of the Large Hadron electron Collider (LHeC) to detect scalar particles with masses 10 GeV produced from decays of the Standard Model (SM) Higgs boson. These scalar particles decay mainly to bottom pairs, and in a vast portion of the allowed parameter space they acquire a macroscopic lifetime, hence giving rise to displaced hadronic vertices. The LHeC provides a very clean environment that allows for easy identification of these final states, in contrast to hadronic colliders where the overwhelming backgrounds and high pile-up render such searches incredibly challenging. We find that the LHeC provides a unique window of opportunity to detect scalar particles with masses between 10 GeV and half the SM Higgs mass. In the Higgs Portal scenarios we can test the mixing angle squared, , as low as , with the exact value depending on the vacuum expectation value of the new scalar. Our results are also presented in a model-independent fashion in the lifetime-branching ratio and mass-branching ratio planes. We have found that exotic branching ratios of the Higgs boson at the sub-percent level can be probed, for the scalar decay length in the range m m. The expected coverage of the parameter space largely exceeds the published sensitivity of the indirect reach at the high-luminosity Large Hadron Collider via the invisible Higgs branching ratio.
arXiv comment18 pages plus references, 5 figures, 2 tables. Added references, constraints from CMS and perturbativity. Results and conclusions unchanged
References in corpus (59)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- The anti-k_t jet clustering algorithm
- FastJet user manual
- DELPHES 3, A modular framework for fast simulation of a generic collider experiment
- Search for the Standard Model Higgs Boson at LEP
- Dispelling the N^3 myth for the Kt jet-finder
- HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
- Combined Measurement of the Higgs Boson Mass in Collisions at and 8 TeV with the ATLAS and CMS Experiments
- Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC collision data at 7 and 8 TeV
- Echoes of a Hidden Valley at Hadron Colliders
- The Twin Higgs: Natural Electroweak Breaking from Mirror Symmetry
- Search for Neutral MSSM Higgs Bosons at LEP
- A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
- Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
- Illuminating Dark Photons with High-Energy Colliders
- Exotic Decays of the 125 GeV Higgs Boson
- Status of the Higgs Singlet Extension of the Standard Model after LHC Run 1
- Experimental Signatures of Low Energy Gauge Mediated Supersymmetry Breaking
- LHC Signals for a SuperUnified Theory of Dark Matter
- Search for invisible decays of a Higgs boson produced through vector boson fusion in proton-proton collisions at 13 TeV
- Minimal Extension of the Standard Model Scalar Sector
- Folded Supersymmetry and the LEP Paradox
- The Large Hadron-Electron Collider at the HL-LHC
- Decay and Detection of a Light Scalar Boson Mixing with the Higgs
- Emerging Jets
- HDECAY: Twenty++ Years After
- Semi-visible Jets: Dark Matter Undercover at the LHC
- Keung-Senjanović process at LHC: from LNV to displaced vertices to invisible decays
- Probing dark sectors with long-lived particles at BELLE II
- Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
- Phenomenology of GeV-scale scalar portal
- Search for massive long-lived particles decaying semileptonically in the LHCb detector
- Triggers for displaced decays of long-lived neutral particles in the ATLAS detector
- The Large Hadron Electron Collider
- Tagging a jet from a dark sector with Jet-substructures at colliders
- Search for long-lived neutral particles in collisions at = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter
- Updated search for long-lived particles decaying to jet pairs
- Search for decays of stopped long-lived particles produced in proton-proton collisions at sqrt(s) = 8 TeV
- Searching for Displaced Higgs Decays
- Dark Scalars and Heavy Neutral Leptons at DarkQuest
- Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at 13 TeV
- New Physics Opportunities for Long-Lived Particles at Electron-Proton Colliders
- Search for long-lived neutral particles produced in collisions at TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer
- A measurement of the material in the ATLAS inner detector using secondary hadronic interactions
- 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
- Resonant heavy Higgs searches at the HL-LHC
- New Emerging Results in Higgs Precision Analysis Updates 2018 after Establishment of Third-Generation Yukawa Couplings
- Probing Long-lived Particles at Higgs Factories
- Invisible Higgs search through Vector Boson Fusion: A deep learning approach
- Detecting multimuon jets from the Higgs exotic decays in the Higgs portal framework
- Exotic Higgs Decay at the LHeC
- Prospects for Heavy Scalar Searches at the LHeC
- On the Origin of Long-Lived Particles
- The Large Hadron Electron Collider Project
- Identifying Exclusive Displaced Hadronic Signatures in the Forward Region of the LHC