Enhanced Di-Higgs Production in the Two Higgs Doublet Model

Abstract

We show that the rate for di-Higgs production at the LHC can be enhanced by a factor as large as 25 compared to the Standard Model value in the two Higgs doublet model while being consistent with the known properties of the observed Higgs boson $h$. There are correlated modifications in $t\overline{t}h$ and resonant $Zh$ production rates, which can serve as tests of this model. Our framework treats both Higgs doublets on equal footing, each with comparable Yukawa couplings to fermions. The Cheng-Sher ansatz for multi-Higgs doublet model is shown to be strongly disfavored by current experiments. We propose a new ansatz for the Yukawa couplings of the Higgs doublets ${\Phi }_a$ is proposed, where $Y_{ij}^{(a)}=C_{ij}^{(a)}\cdot \min \{m_i,m_j\}/v$, with $C_{ij}^{(a)}$ being order one coefficients, $m_i$ the mass of fermion $i$ and $v$ the electroweak vacuum expectation value. Such a pattern of couplings can explain the observed features of fermion masses and mixings and satisfies all flavor violation constraints arising from the exchange of neutral Higgs bosons. The rate for $\mu \to e\gamma$ decay and new contributions to CP violation in $B_s-{\overline{B}}_s$ mixing are predicted to be close to the experimental limits.

arXiv comment47 pages, 15 figures, published version in JHEP

References in corpus (24)

• Theory and phenomenology of two-Higgs-doublet models
• Verifiable Radiative Seesaw Mechanism of Neutrino Mass and Dark Matter
• Higgs mass and vacuum stability in the Standard Model at NNLO
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• Model-independent constraints on Delta F=2 operators and the scale of New Physics
• Delta M_K and epsilon_K in SUSY at the Next-to-Leading order
• The oblique parameters in multi-Higgs-doublet models
• A precision constraint on multi-Higgs-doublet models
• Baryogenesis in the Two-Higgs Doublet Model
• Minkowski space structure of the Higgs potential in 2HDM: II. Minima, symmetries, and topology
• Dynamics of Two Higgs Doublet CP Violation and Baryogenesis at the Electroweak Phase Transition
• Two--loop Contributions of Flavor Changing Neutral Higgs Boson to $\mu \to e\gamma$
• B_d-Bbar_d Mixing and the B_d -> J/psi K_s Asymmetry in General SUSY Models
• Flavor Physics in the Randall-Sundrum Model: II. Tree-Level Weak-Interaction Processes
• Large neutrino mixing angles in unified theories
• Higgs pair production via gluon fusion in the Two-Higgs-Doublet Model
• Higgs Pair Production at NLO QCD for CP-violating Higgs Sectors
• Approximate Alignment in Two Higgs Doublet Model with Extra Yukawa Couplings
• Preserving the validity of the Two-Higgs Doublet Model up to the Planck scale
• What the Oblique Parameters S, T, and U and Their Extensions Reveal About the 2HDM: A Numerical Analysis
• New Physics Scale from Higgs Observables with Effective Dimension-6 Operators
• Higgs Pair Production as a Signal of Enhanced Yukawa Couplings
• CP violation in a multi-Higgs doublet model with flavor changing neutral current
• FCNC decays of the Higgs bosons in the BGL model

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