Hiding the Higgs at the LHC

Abstract

We study a simple extension of the standard model where scalar singlets that mix with the Higgs doublet are added. This modification to the standard model could have a significant impact on Higgs searches at the LHC. The Higgs doublet is not a mass eigenstate and therefore the expected nice peak of the standard model Higgs disappears. We analyze this scenario finding the required properties of the singlets in order to make the Higgs "invisible" at the LHC. In some part of the parameter space even one singlet could make the discovery of the SM Higgs problematic. In other parts, the Higgs can be discovered even in the presence of many singlets.

9 pages, 1 figure. V2- References added. V3- Several examples and one fig. added

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Cited by in corpus (52)

• Strong Electroweak Phase Transitions in the Standard Model with a Singlet
• Complex Singlet Extension of the Standard Model
• Novel Effects in Electroweak Breaking from a Hidden Sector
• Nonstandard Higgs Boson Decays
• Delta r and the W-boson mass in the Singlet Extension of the Standard Model
• The N2HDM under Theoretical and Experimental Scrutiny
• ScannerS: Constraining the phase diagram of a complex scalar singlet at the LHC
• Strong electroweak phase transitions without collider traces
• Hidden Higgs Decaying to Lepton Jets
• Singlet Extensions of the Standard Model at LHC Run 2: Benchmarks and Comparison with the NMSSM
• Complete One-Loop Matching for a Singlet Scalar in the Standard Model EFT
• Complex Scalar Dark Matter vis-à-vis CoGeNT, DAMA/LIBRA and XENON100
• Two-loop stability of a complex singlet extended Standard Model
• Measuring extended Higgs sectors as a consistent free couplings model
• Singlet Fermionic Dark Matter and the Electroweak Phase Transition
• Evasive Higgs Maneuvers at the LHC
• The dark side of the Higgs boson
• Heavy to light Higgs boson decays at NLO in the Singlet Extension of the Standard Model
• Standard Model couplings and collider signatures of a light scalar
• Electroweak Phase Transition and LHC Signatures in the Singlet Majoron Model
• Phenomenology of the minimal $B-L$ extension of the Standard Model: the Higgs sector
• Higgs ID at the LHC
• Hiding the Higgs Boson with Multiple Scalars
• $W$ boson polarization in vector boson scattering at the LHC
• Polarized vector boson scattering in the fully leptonic WZ and ZZ channels at the LHC
• Realistic Neutrinogenesis with Radiative Vertex Correction
• Constraining Scalar Singlet Dark Matter with CDMS, XENON and DAMA and Prediction for Direct Detection Rates
• Phenomenology of the minimal B-L extension of the Standard Model at the LHC
• Collider signatures of sterile neutrinos in models with a gauge-singlet Higgs
• Controlling the fine-tuning problem with singlet scalar dark matter
• Dark Higgs Models at the 7 TeV LHC
• The Higgs Decay Width in Multi-Scalar Doublet Models
• Decoupling Theoretical Uncertainties from Measurements of the Higgs Boson
• Potential of a singlet scalar enhanced Standard Model
• The vacuum structure of the Higgs complex singlet-doublet model
• Searching for Nambu-Goldstone Bosons at the LHC
• Reconciling $(g-2{)}_{\mu }$ and charged lepton flavour violating processes through a doubly charged scalar
• Dirac Neutrinos, Dark Energy and Baryon Asymmetry
• A composite light scalar, electro-weak symmetry breaking and the recent LHC searches
• CP in the dark
• The Higgs sector of the minimal B-L model at future Linear Colliders
• Decays of Higgs Bosons in the Standard Model and Beyond
• Unified picture for Dirac neutrinos, dark matter, dark energy and matter-antimatter asymmetry
• Private Higgs at the LHC
• Little Higgs models with a light T quark
• Interference Effects in Higgs production through Vector Boson Fusion in the Standard Model and its Singlet Extension
• Charged Higgs decay to $W^{\pm }H$ at a high energy lepton collider
• EFT, decoupling, Higgs boson mixing, and higher dimensional operators
• Heavy neutral 2HDM Higgs Boson Pair Production at CLIC Energies
• Boosting Invisible Higgs Searches by Tagging a Gluon Jet for Gluon Fusion Process
• Sifting composite from elementary models at FCCee and CePC
• Phase structure and phase transitions of the SU(2) x O(N) symmetric scalar field theory