Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866917834066493440 |
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| author | De Curtis, Stefania Rose, Luigi Delle Egle, Felix Moretti, Stefano Mühlleitner, Margarete Sakurai, Kodai |
| author_facet | De Curtis, Stefania Rose, Luigi Delle Egle, Felix Moretti, Stefano Mühlleitner, Margarete Sakurai, Kodai |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2310_10471 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production De Curtis, Stefania Rose, Luigi Delle Egle, Felix Moretti, Stefano Mühlleitner, Margarete Sakurai, Kodai High Energy Physics - Phenomenology 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. |
| title | Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2310.10471 |