Neutral Higgs Boson Pair-Production and Trilinear Self-Couplings in the MSSM at ILC and CLIC Energies

Abstract

We study pair-production as well as the triple self-couplings of the neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) at the Future International Linear $e^{+}{e}^{-}$ Collider (ILC) and Compact Linear Collider (CLIC). The analysis is based on the reactions $e^{+}{e}^{-}\to b\bar{b}{h}_i{h}_i,t\bar{t}{h}_i{h}_i$ with $h_i=h,H,A$. We evaluate the total cross-section for both $b\bar{b}{h}_i{h}_i$, $t\bar{t}{h}_i{h}_i$ and calculate the total number of events considering the complete set of Feynman diagrams at tree-level. We vary the triple couplings $\kappa {\lambda }_{hhh}$, $\kappa {\lambda }_{Hhh}$, $\kappa {\lambda }_{hAA}$, $\kappa {\lambda }_{HAA}$, $\kappa {\lambda }_{hHH}$ and $\kappa {\lambda }_{HHH}$ within the range $\kappa =-1$ and +2. The numerical computation is done for the energies expected at the ILC with a center-of-mass energy 500, 1000, 1600 $GeV$ and a luminosity 1000 $f{b}^{-1}$. The channels $e^{+}{e}^{-}\to b\bar{b}{h}_i{h}_i$ and $e^{+}{e}^{-}\to t\bar{t}{h}_i{h}_i$ are also discussed to a center-of-mass energy of 3 $TeV$ and luminosities of 1000 $f{b}^{-1}$ and 5000 $f{b}^{-1}$.

26 pages, 11 figures

References in corpus (6)

• The Anatomy of Electro-Weak Symmetry Breaking. II: The Higgs bosons in the Minimal Supersymmetric Model
• 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
• Triple Higgs boson production in the Linear Collider
• The Triple Higgs Boson Self-Coupling at Future Linear e+e- Colliders Energies: ILC and CLIC
• Pairs-Production of Higgs in Association with Bottom Quarks Pairs at $e^{+}{e}^{-}$ Colliders

Cited by in corpus (6)

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• Measuring Higgs self couplings in the presence of VVH and VVHH at the ILC
• Discovery potential of Higgs boson pair production through 4$\ell$+$E/$ final states at a 100 TeV collider
• PGB pair production at LHC and ILC as a probe of the topcolor-assisted technicolor models
• Observability of Charged Higgs through Triple or Double Higgs Production in a General Two Higgs Doublet Model at an e+e- Linear Collider
• Charged Higgs Pair Production at the LHC as a Probe of the Top-Seesaw Assisted Technicolor Models