An extended scalar sector to address the tension between a fourth generation and Higgs searches at the LHC
arXiv:1108.0222 · doi:10.1016/j.physletb.2011.12.063
Abstract
It is expected that the LHC will soon discover the Higgs boson, or that failure to find it will severely constrain its production cross-section over a large mass range. Either one of these results spells trouble for a fourth generation that significantly enhances the Higgs production cross-section at LHC. In fact the LHC has already ruled out a SM Higgs mass in the range of 120 GeV to 600 GeV with a fourth generation at the 95% C.L. In this paper we explore options within extended scalar sectors to maintain the viability of a heavy fourth generation if an enhanced (relative to the Standard Model) Higgs production cross-section is not observed.
Latex 7 pages. Version to appear in Phys. Lett. B
References in corpus (4)
Cited by in corpus (35)
- Impact of a Higgs boson at a mass of 126 GeV on the standard model with three and four fermion generations
- Enhanced di-Higgs Production through Light Colored Scalars
- Higgs Underproduction at the LHC
- Hiding a Heavy Higgs Boson at the 7 TeV LHC
- Effects from New Colored States and the Higgs Portal on Gluon Fusion and Higgs Decays
- Status of the fourth fermion generation before ICHEP2012: Higgs data and electroweak precision observables
- LHC constraints on color octet scalars
- Higgs data does not rule out a sequential fourth generation with an extended scalar sector
- LHC bounds on coloured scalars
- Fourth Generation Parity
- The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
- New theoretical constraints on scalar color octet models
- Interplay between new physics in one-loop Higgs couplings and the top-quark Yukawa coupling
- Large mass splittings for fourth generation fermions allowed by LHC Higgs exclusion
- Lepton-flavour-violating gluonic operators: constraints from the LHC and low energy experiments
- Two Higgs doublet models augmented by a scalar color octet
- QCD exotics versus a Standard Model Higgs
- Top and bottom tensor couplings from a color octet scalar
- Chromomagnetic and chromoelectric dipole moments of the top quark in the 4GTHDM
- Electroweak Constraints on the Fourth Generation at Two Loop Order
- Status of the Fourth Generation - A Brief Summary of B3SM-III Workshop in Four Parts
- Hybrid dynamical electroweak symmetry breaking with heavy quarks and the 125 GeV Higgs
- The Need for New Search Strategies for Fourth Generation Quarks at the LHC
- Hiding the Higgs Boson from Prying Eyes
- Constraints on coloured scalars from global fits
- Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
- Neutrino Masses and a Fourth Generation of Fermions
- Electric dipole moments from colour-octet scalars
- Validity of two Higgs doublet models with a scalar color octet up to a high energy scale
- Binary Icosahedral Flavor Symmetry for Four Generations of Quarks and Leptons
- Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
- On long-lived electroweak-singlet coloured scalars
- Colour Octet Extension of 2HDM
- Investigating the sterile neutrino parameters with QLC in 3 + 1 scenario
- CP-Violation phase analysis via non-trivial correlation of quarks and leptons in 3+1 scenario