Constraints on New Scalars from the LHC 125 GeV Higgs Signal

Abstract

We study the implications the recent results from the LHC Higgs searches have on scalar new physics. We study the impact on both the Higgs production and decay from scalars with and without colour, and in cases where decoupling do and do not happen. We investigate possible constraints on scalar parameters from the production rate in the diphoton channel, and also the two vector boson channels. Measurements from both channels can help disentangle new physics due to colour from that due to charge, and thus reveal the nature of the new scalar states.

23 pages, 8 figures; references addded, typos corrected. Published in PRD

References in corpus (11)

• Search for the Standard Model Higgs boson in the diphoton decay channel with 4.9 fb-1 of pp collisions at sqrt(s) = 7 TeV with ATLAS
• Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV
• Shadow Higgs from a scale-invariant hidden $U(1{)}_s$ model
• Search for the Standard Model Higgs boson in the decay channel H->ZZ(*)->4l with 4.8 fb-1 of pp collision data at sqrt(s) = 7 TeV with ATLAS
• Search for the standard model Higgs boson in the decay channel H to ZZ to 4 leptons in pp collisions at sqrt(s) = 7 TeV
• Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO
• Total Width of 125 GeV Higgs Boson
• Higgs Triplets and Limits from Precision Measurements
• Diphotons from Tetraphotons in the Decay of a 125 GeV Higgs at the LHC
• Testing Radiative Neutrino Mass Generation at the LHC
• Sterile neutrino dark matter, CDMS-II and a light Higgs boson

Cited by in corpus (51)

• Physics of leptoquarks in precision experiments and at particle colliders
• The universal Higgs fit
• Robust Determination of the Higgs Couplings: Power to the Data
• Vacuum Stability, Perturbativity, EWPD and Higgs-to-diphoton rate in Type II Seesaw Models
• The 125 GeV Higgs and Electroweak Phase Transition Model Classes
• Vacuum Stability and Higgs Diphoton Decays in the MSSM
• Modified Higgs branching ratios versus CP and lepton flavor violation
• The Next-to-Minimal Two Higgs Doublet Model
• Accidental matter at the LHC
• Does $H\to \gamma \gamma$ Taste like vanilla New Physics?
• New Scalar Contributions to $h\to Z\gamma$
• Modified Higgs Sectors and NLO Associated Production
• Stau with Large Mass Difference and Enhancement of the Higgs to Diphoton Decay Rate in the MSSM
• Constraining parameter space in type-II two-Higgs doublet model in light of a 126 GeV Higgs boson
• Neutral Higgs Bosons in the Higgs Triplet Model with nontrivial mixing
• Nondecoupling of charged scalars in Higgs decay to two photons and symmetries of the scalar potential
• Light Stops, Light Staus and the 125 GeV Higgs
• Novel universality and Higgs decay H -> γγ, gg in the SO(5) x U(1) gauge-Higgs unification
• An effective gauge-Higgs operators analysis of new physics associated with the Higgs
• The SM extension with color-octet scalars: diphoton enhancement and global fit of LHC Higgs data
• Enhancing Scalar Productions with Leptoquarks at the LHC
• Enhancement of $h\to \gamma \gamma$ by seesaw-motivated exotic scalars
• Higgs Uncovering Light Scalar Remnants of High Scale Matter Unification
• Probing Scotogenic Effects in Higgs Boson Decays
• Scalar Septuplet Dark Matter and Enhanced $h\to \gamma \gamma$ Decay Rate
• Constraints on the Scalar Sector of the Renormalizable Coloron Model
• Diphoton Decay Excess and 125 GeV Higgs Boson in Gauge-Higgs Unification
• Triplet Scalar Dark Matter and Leptogenesis in an Inverse See-Saw Model of Neutrino Mass Generation
• Peccei-Quinn symmetry as the origin of Dirac Neutrino Masses
• Vacuum Stability and Higgs Diphoton Decay Rate in the Zee-Babu Model
• Inspecting the Higgs for New Weakly Interacting Particles
• Enhancement of Higgs to diphoton decay width in non-perturbative Higgs model
• Can New Colored Particles Illuminate the Higgs?
• A Minimal Model of Majoronic Dark Radiation and Dark Matter
• Charged Lepton Flavor Violating Processes and Scalar Leptoquark Decay Branching Ratios in the Colored Zee-Babu Model
• Unification scale vs. electroweak-triplet mass in the SU(5) + 24_F model at three loops
• H to Z gamma in Gauge-Higgs Unification
• Phenomenological Aspects of TeV Scale Alternative Left-Right Model
• Enhancement of H -> gamma gamma in SU(5) model with 45_H plet
• Simple fermionic dark matter models and Higgs boson couplings
• Same-Sign Dileptons from Colored Scalars in the Flavorful Top-Coloron Model
• LHC diphoton and Z+photon Higgs signals in the Higgs triplet model with Y=0
• Enhanced diphoton Higgs decay rate and isospin symmetric Higgs boson
• Probing Radiative Neutrino Mass Generation through Monotop Production
• Prospects for Detecting light bosons at the FCC-ee and CEPC
• Constraints on scalar and vector leptoquarks from the LHC Higgs data
• Study of Gauged Lepton Symmetry Signatures at Colliders
• Implications Of The Higgs Discovery On Physics Beyond The Standard Model
• Doubly cvharged vector leptons and the Higgs portal
• Selected topics on multi-loop calculations to Higgs boson properties and renormalization group functions
• Scalar leptoquark contributions to the $gg\to Zh$ process