Higgs Underproduction at the LHC
arXiv:1112.2208 · doi:10.1103/PhysRevD.85.074031
Abstract
We show that production of the Higgs boson through gluon-fusion may be suppressed in the presence of colored scalars. Substantial destructive interference between the top quark diagrams and colored scalar diagrams is possible due to cancellations between the real (and also imaginary) parts of the amplitudes. As an example, we consider a color-octet scalar that has a negative, order one coupling to the Higgs doublet. We find that gluon fusion can be suppressed by more than an order of magnitude when the scalar mass is below a few hundred GeV, while milder suppressions occur for larger scalar masses or smaller couplings. Thus, the standard model extended with only one particle can evade the full range of present LHC exclusion limits on the Higgs mass. The colored scalars, however, would be produced in pairs with a large rate at the LHC, leading to multi-jet final states to which the LHC experiments are now becoming sensitive.
8 pages, 9 figures. Minor improvements made and references added
References in corpus (24)
- Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
- Nonstandard Higgs Boson Decays
- Measuring the Higgs Sector
- Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO
- Color-octet scalars at the LHC
- Color-Octet Scalars of N=2 Supersymmetry at the LHC
- Massive color-octet bosons and pairs of resonances at hadron colliders
- Higgs Boson Production via Gluon Fusion: Squark Loops at NLO QCD
- Heavy octets and Tevatron signals with three or four b jets
- Color Octet Scalar Production at the LHC
- Search for massive colored scalars in four-jet final states in sqrt{s}=7 TeV proton-proton collisions with the ATLAS detector
- Measuring Hidden Higgs and Strongly-Interacting Higgs Scenarios
- Grand Unification and Light Color-Octet Scalars at the LHC
- An extended scalar sector to address the tension between a fourth generation and Higgs searches at the LHC
- Higgs Boson Signatures of MSSM Electroweak Baryogenesis
- Hadronically decaying color-adjoint scalars at the LHC
- Hiding a Heavy Higgs Boson at the 7 TeV LHC
- Color octet scalars and high pT four-jet events at LHC
- Smoking Guns for On-Shell New Physics at the LHC
- Pair Production of Color-Octet Scalars at the LHC
- Implications of the Higgs Discovery in the MSSM Golden Region
- Color-octet scalars at the LHC
- Hiding the Higgs Boson from Prying Eyes
- Constraints on heavy colored scalars from Tevatron's Higgs exclusion limit
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- Electroweak Symmetry Breaking and the Higgs Boson: Confronting Theories at Colliders
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- Light color octet scalars in the minimal SO(10) grand unification
- Constraints on New Scalars from the LHC 125 GeV Higgs Signal
- The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data
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- Effects from New Colored States and the Higgs Portal on Gluon Fusion and Higgs Decays
- Precision Higgs Measurements: Constraints from New Oblique Corrections
- LHC constraints on color octet scalars
- Constraints on the Scalar Sector of the Renormalizable Coloron Model
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- Gauge Extensions of the MSSM Revisited
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- Enhancement of H -> gamma gamma in SU(5) model with 45_H plet
- New theoretical constraints on scalar color octet models
- Hunting for Dark Matter Coannihilation by Mixing Dijet Resonances and Missing Transverse Energy
- Same-Sign Dileptons from Colored Scalars in the Flavorful Top-Coloron Model
- Interplay between new physics in one-loop Higgs couplings and the top-quark Yukawa coupling
- Unconstraining the Unhiggs
- Enhanced diphoton Higgs decay rate and isospin symmetric Higgs boson
- Two Higgs doublet models augmented by a scalar color octet
- Constraining the Unhiggs with LHC data
- QCD exotics versus a Standard Model Higgs
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- Private Higgs at the LHC
- Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
- Constraints on coloured scalars from global fits
- Higgs Descendants
- Electric dipole moments from colour-octet scalars
- Validity of two Higgs doublet models with a scalar color octet up to a high energy scale
- On long-lived electroweak-singlet coloured scalars
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- Octet scalars shaping LHC distributions in 4-jet final states
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