Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production
We show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs pair production at the Large Hadron Collider in both resonant and non-resonant mode. Such effects can arise from modified trilinear Higgs self-couplings and top-Yukawa coupling...
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| creator | De Curtis, Stefania Luigi Delle Rose Egle, Felix Moretti, Stefano Mühlleitner, Margarete Sakurai, Kodai |
| description | We show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs pair production at the Large Hadron Collider in both resonant and non-resonant mode. Such effects can arise from modified trilinear Higgs self-couplings and top-Yukawa couplings as well as from loops of new heavy quarks and additional quartic Higgs-fermion interactions. In the resonant case, significant distortions of the Breit- Wigner shape of a new scalar state decaying into the two SM-like Higgs states may occur due to interference effects amongst not only the SM-like diagrams but also those involving the new heavy quarks. In the non-resonant case, a modification of the underlying line-shape and a local maximum at twice a new heavy quark mass appear simultaneously. We quantify these effects by taking into account the relevant theoretical and latest experimental bounds. |
| doi_str_mv | 10.48550/arxiv.2310.10471 |
| format | Article |
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| subjects | Couplings Fermions Large Hadron Collider Pair production Physics - High Energy Physics - Phenomenology Quarks |
| title | Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production |
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