LHC bounds on coloured scalars

Abstract

We analyze the constraints on coloured scalar bosons imposed by the current LHC data at $\sqrt{s}=13$ TeV. Specifically, we consider an additional electroweak doublet of colour-octet scalars, satisfying the principle of Minimal Flavour Violation in order to fulfill the stringent experimental limits on flavour-changing neutral currents. We demonstrate that coloured scalars with masses below 800 GeV are already excluded, provided they are not fermiophobic.

arXiv commentVersion published at Physical Review D

References in corpus (77)

• 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
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• LHAPDF6: parton density access in the LHC precision era
• Minimal Flavour Violation: an effective field theory approach
• UFO - The Universal FeynRules Output
• FeynRules - Feynman rules made easy
• HIGGS BOSON PRODUCTION AT THE LHC
• NLO QCD corrections to t anti-t H production in hadron collisions
• Yukawa Alignment in the Two-Higgs-Doublet Model
• Sensitivity to charged scalars in $B\to D^{(\ast )}\tau {\nu }_{\tau }$ and $B\to \tau {\nu }_{\tau }$ decays
• Scalar contributions to $b\to c(u)\tau \nu$ transitions
• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• Electric Dipole Moments in Two-Higgs-Doublet Models
• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• LHC constraints on two-Higgs doublet models
• Color-octet scalars at the LHC
• Search for production of four top quarks in final states with same-sign or multiple leptons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• New Barr-Zee contributions to $(\mathbf{g}-2{)}_{\mu }$ in two-Higgs-doublet models
• Flavor constraints on the Two Higgs Doublet Models of $Z_2$ symmetric and aligned types
• Search for charged Higgs bosons decaying into top and bottom quarks at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• A Minimal Flavor Violating 2HDM at the LHC
• Enhanced di-Higgs Production through Light Colored Scalars
• Search for new phenomena in events with same-charge leptons and $b$-jets in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Renormalization-group constraints on Yukawa alignment in multi-Higgs-doublet models
• Search for heavy Higgs bosons $A/H$ decaying to a top quark pair in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Measuring extended Higgs sectors as a consistent free couplings model
• Color Octet Scalar Production at the LHC
• Towards a general analysis of LHC data within two-Higgs-doublet models
• Update of Global Two-Higgs-Doublet Model Fits
• $B_{s,d}^0\to {\ell }^{+}{\ell }^{-}$ Decays in the Aligned Two-Higgs-Doublet Model
• Muon g-2 in the 2HDM: maximum results and detailed phenomenology
• Cornering sgluons with four-top-quark events
• Low Scale Quark-Lepton Unification
• Light color octet scalars in the minimal SO(10) grand unification
• High scale flavor alignment in two-Higgs doublet models and its phenomenology
• Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model
• Unification versus proton decay in SU(5)
• Next to Minimal Flavor Violation
• Higgs Underproduction at the LHC
• Flavour alignment in multi-Higgs-doublet models
• Muon $g-2$ in the Aligned Two Higgs Doublet Model
• Light Octet Scalars, a Heavy Higgs and Minimal Flavour Violation
• Heavy Higgs boson decays in the alignment limit of the 2HDM
• Status of the aligned two-Higgs-doublet model confronted with the Higgs data
• The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data
• Radiatively induced flavour violation in the general two-Higgs doublet model with Yukawa alignment
• QCD Corrections in two-Higgs-doublet extensions of the Standard Model with Minimal Flavor Violation
• An extended scalar sector to address the tension between a fourth generation and Higgs searches at the LHC
• Yukawa alignment from natural flavor conservation
• Renormalizable SU(5) Unification
• $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ Decay in the Aligned Two-Higgs-Doublet Model
• The B -> Xs gamma Rate and CP Asymmetry within the Aligned Two-Higgs-Doublet Model
• Constraining General Two Higgs Doublet Models by the Evolution of Yukawa Couplings
• Hiding a Heavy Higgs Boson at the 7 TeV LHC
• The 2HDM-X and Large Hadron Collider Data
• Color octet scalars and high pT four-jet events at LHC
• Yukawa Alignment in a Multi Higgs Doublet Model: An effective approach
• A Flavorful Top-Coloron Model
• Flavour constraints on multi-Higgs-doublet models: Yukawa alignment
• LHC constraints on color octet scalars
• Light charged Higgs bosons decaying to charm and bottom quarks in models with two or more Higgs doublets
• Low-mass fermiophobic charged Higgs phenomenology in two-Higgs-doublet models
• Unitarity and vacuum stability constraints on the couplings of color octet scalars
• $B_s^0-{\bar{B}}_s^0$ mixing within minimal flavor-violating two-Higgs-doublet models
• Top quark anomalous tensor couplings in the two-Higgs-doublet models
• Same-Sign Dileptons from Colored Scalars in the Flavorful Top-Coloron Model
• New theoretical constraints on scalar color octet models
• Two Higgs doublet models augmented by a scalar color octet
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• Top and bottom tensor couplings from a color octet scalar
• Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
• The ${\Lambda }_b\to \Lambda (\to p{\pi }^{-}){\mu }^{+}{\mu }^{-}$ decay in the aligned two-Higgs-doublet model
• $K^0-{\bar{K}}^0$ mixing in the minimal flavor-violating two-Higgs-doublet models
• The right top coupling in the aligned two-Higgs-doublet model
• Probing sensitivity to charged scalars through partial differential widths: $\tau \to K\pi \pi {\nu }_{\tau }$ decays

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• Improved bounds on heavy quark electric dipole moments
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• Viable quark-lepton Yukawa ratios and nucleon decay predictions in $SU(5)$ GUTs with type-II seesaw
• Lepton Flavour Violation in minimal grand-unified type II seesaw models
• Color-octet scalar decays to a gluon and an electroweak gauge boson in the Manohar-Wise model
• Constraints on coloured scalars from global fits
• Electric dipole moments from colour-octet scalars
• LEX-EFT: The Light Exotics Effective Field Theory
• On long-lived electroweak-singlet coloured scalars
• Dark matter with exotic mediators: The diquark portal
• The quark-lepton portal beyond leptoquarks