Neutral Higgs-pair production at Linear Colliders within the general 2HDM: quantum effects and triple Higgs boson self-interactions

Abstract

The pairwise production of neutral Higgs bosons is analyzed in the context of the future linear colliders, such as the ILC and CLIC, within the general Two-Higgs-Doublet Model (2HDM). The corresponding cross-sections are computed at the one-loop level in full compliance with the current phenomenological bounds and the stringent theoretical constraints inherent to the consistency of the model. We uncover regions across the 2HDM parameter space, mainly for low tanβnear 1 and moderate values of the relevant lambda_5 parameter, wherein the radiative corrections to the Higgs-pair production cross sections can comfortably reach 50% This behavior can be traced back to the enhancement capabilities of the trilinear Higgs self-interactions -- a trademark feature of the 2HDM, with no counterpart in the Minimal Supersymmetric Standard Model. Interestingly enough, the quantum effects are positive for energies around 500 GeV, thereby producing a significant enhancement in the expected number of events precisely around the fiducial startup energy of the ILC. The Higgs-pair production rates can be substantial, typically amounting to a few thousand events per 500 inverse femtobarn of integrated luminosity. In contrast, the corrections are negative in the highest energy range (1 TeV). We also compare the exclusive pairwise production of Higgs bosons with the inclusive gauge boson fusion channels leading to 2H+X finals states, and also with the exclusive triple Higgs boson production. We find that these multiparticle final states can be highly complementary in the overall Higgs bosons search strategy.

42 pages, 23 figures, 10 tables. Accepted in Phys. Rev. D (the published version is shorter)

References in corpus (21)

• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• The oblique parameters in multi-Higgs-doublet models
• NNLO QCD corrections to the B -> X_s gamma matrix elements using interpolation in m_c
• A precision constraint on multi-Higgs-doublet models
• Constraining the Two-Higgs-Doublet-Model parameter space
• Automatised full one-loop renormalisation of the MSSM I: The Higgs sector, the issue of tan(beta) and gauge invariance
• Double Neutral Higgs production in the Two-Higgs doublet model at the LHC
• Automatised full one-loop renormalisation of the MSSM II: The chargino-neutralino sector, the sfermion sector and some applications
• Effect of H^\pm on B^\pm\to τ^\pmν_τand D^\pm_s\to μ^\pmν_μ,τ^\pmν_τ
• Trilinear Higgs couplings in the two Higgs doublet model with CP violation
• Probing triple Higgs couplings of the Two Higgs Doublet Model at Linear Collider
• Higgs boson pair production at a photon-photon collision in the two Higgs doublet model
• Triple Higgs boson production in the Linear Collider
• Single top-quark production by strong and electroweak supersymmetric flavor-changing interactions at the LHC
• Supersymmetric Higgs Bosons in Weak Boson Fusion
• Neutral Higgs boson pair production in photon-photon annihilation in the Two Higgs Doublet Model
• Pair Production of Two-Higgs-Doublet_Model Light Higgs Bosons in $\gamma \gamma$ Collisions
• FCNC-induced heavy-quark events at the LHC from Supersymmetry
• Associated production of charged Higgs and top at LHC: the role of the complete electroweak supersymmetric contribution
• Vector-Boson Production of Light Higgs Pairs in 2-Higgs Doublet Models
• SUSY QCD Corrections to Higgs Pair Production from Bottom Quark Fusion

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