Higgs pair production as a signal of enhanced Yukawa couplings

• Verfasst von: Bauer, Martin [VerfasserIn]
• Verfasst von: Carena, Marcela [VerfasserIn]
• Verfasst von: Carmona, Adrián [VerfasserIn]
• Titel: Higgs pair production as a signal of enhanced Yukawa couplings
• Verf.angabe: Martin Bauer, Marcela Carena, Adrián Carmona
• Jahr: 2018
• Umfang: 6 S.
• Fussnoten: Gesehen am 06.11.2020
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018) Artikel-Nummer 1801.00363, 6 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Phenomenology
• K10plus-PPN: 156704879X

Abstract

We present a non-trivial correlation between the enhancement of the Higgs-fermion couplings and the Higgs pair production cross section in two Higgs doublet models with a flavour symmetry. This symmetry suppresses flavour-changing neutral couplings of the Higgs boson and allows for a partial explanation of the hierarchy in the Yukawa sector. After taking into account the constraints from electroweak precision measurements, Higgs coupling strength measurements, and unitarity and perturbativity bounds, we identify an interesting region of parameter space leading to enhanced Yukawa couplings as well as enhanced di-Higgs gluon fusion production at the LHC reach. This effect is visible in both the resonant and non-resonant contributions to the Higgs pair production cross section. We encourage dedicated searches based on differential distributions as a novel way to indirectly probe enhanced Higgs couplings to light fermions.4241 Enthalten in arXiv:1801.00363 [hep-ph]