Pair production of 125 GeV Higgs boson in the SM extension with color-octet scalars at the LHC

Abstract

Although the Higgs boson mass and single production rate have been determined more or less precisely, its other properties may deviate significantly from its predictions in the standard model (SM) due to the uncertainty of Higgs data. In this work we study the Higgs pair production at the LHC in the Manohar-Wise model, which extends the SM by one family of color-octet and isospin-doublet scalars. We first scanned over the parameter space of the Manohar-Wise model considering exprimental constraints and performed fits in the model to the latest Higgs data by using the ATLAS and CMS data separately. Then we calculated the Higgs pair production rate and investigated the potential of its discovery at the LHC14. We conclude that: (i) Under current constrains including Higgs data after Run I of the LHC, the cross section of Higgs pair production in the Manohar-Wise model can be enhanced up to even $10^3$ times prediction in the SM. (ii) Moreover, the sizable enhancement comes from the contributions of the CP-odd color-octet scalar $S_I^A$. For lighter scalar $S_I^A$ and larger values of $|{\lambda }_I|$, the cross section of Higgs pair production can be much larger. (iii) After running again of LHC at 14 TeV, most of the parameter spaces in the Manohar-Wise model can be test. For an integrated luminosity of 100 fb${}^{-1}$ at the LHC14, when the normalized ratio $R=10$, the process of Higgs pair production can be detected.

13 pages, 4 figures

References in corpus (19)

• 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
• New parton distributions for collider physics
• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• New Physics in LHC Higgs boson pair production
• Scalar Particle Contribution to Higgs Production via Gluon Fusion at NLO
• Higgs-Pair Production and Measurement of the Triscalar Coupling at LHC(8,14)
• MSSM Higgs Bosons at The LHC
• Implications of the Higgs Boson Discovery for mSUGRA
• Higgs-pair Production in Littlest Higgs Model with T-parity
• Little Higgs theory confronted with the LHC Higgs data
• Higgs Uncovering Light Scalar Remnants of High Scale Matter Unification
• Higgs-pair Production and Decay in Simplest Little Higgs Model
• Higgs Phenomenology in the Minimal Dilaton Model after Run I of the LHC
• Scalar leptoquarks and Higgs pair production at the LHC
• Supersymmetry phenomenology beyond the MSSM after 5/fb of LHC data
• Remarks on double Higgs boson production by gluon fusion at threshold
• Constraints on large-extra-dimensions model through 125 GeV Higgs pair production at the LHC
• Diphoton Rate of the Standard-Model-Like Higgs Boson in the Extra U(1) Extended MSSM

Cited by in corpus (18)

• Higgs boson pair production in the D=6 extension of the SM
• Higgs boson potential at colliders: status and perspectives
• What's in the Loop? The Anatomy of Double Higgs Production
• Search for two Higgs bosons in final states containing two photons and two bottom quarks in proton-proton collisions at 8 TeV
• Triple Higgs boson production at a 100 TeV proton-proton collider
• LHC Phenomenology of Type II Seesaw: Nondegenerate Case
• Higgs Pair Production at NLO QCD for CP-violating Higgs Sectors
• Discovering Higgs boson pair production through rare final states at a 100 TeV collider
• Signs of Composite Higgs Pair Production at Next-to-Leading Order
• LHC Phenomenology of the Type II Seesaw Mechanism: Observability of Neutral Scalars in the Nondegenerate Case
• Probe Higgs boson pair production via the $3\ell 2j$ + missing $E_T$ mode
• Impact of top-Higgs couplings on di-Higgs production at future colliders
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• Higgs-strahlung production process e^+ e^- \to Z h at the future Higgs factory in the Minimal Dilaton Model
• Vacuum Stability and Perturbativity of SU(3) Scalars
• Pair production of Higgs boson in NMSSM at the LHC with next-to-lightest CP-even Higgs boson being SM-like
• Triple Higgs Coupling as a Probe of the Twin-Peak Scenario
• Colored scalars and the neutron electric dipole moment