Higgs probes of top quark contact interactions and their interplay with the Higgs self-coupling

Author:

Alasfar Lina,de Blas JorgeORCID,Gröber Ramona

Abstract

AbstractWe calculate the dominant contributions of third generation four-quark operators to single-Higgs production and decay. They enter via loop corrections to Higgs decays into gluons, photons and$$ b\overline{b} $$bb¯, and in Higgs production via gluon fusion and in association with top quark pairs. We show that these loop effects can, in some cases, lead to better constraints than those from fits to top quark data. Finally, we investigate whether these four-fermion operators can spoil the determination of the trilinear Higgs self-coupling from fits to single-Higgs data.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference81 articles.

1. ATLAS collaboration, Combined measurements of Higgs boson production and decay using up to 80fb–1 of proton-proton collision data at $$ \sqrt{s} $$ = 13 TeV collected with the ATLAS experiment, Phys. Rev. D 101 (2020) 012002 [arXiv:1909.02845] [INSPIRE].

2. CMS collaboration, Combined measurements of Higgs boson couplings in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV, Eur. Phys. J. C 79 (2019) 421 [arXiv:1809.10733] [INSPIRE].

3. R. Frederix, D. Pagani and M. Zaro, Large NLO corrections in $$ t\overline{t}{W}^{\pm } $$ and $$ t\overline{t}t\overline{t} $$ hadroproduction from supposedly subleading EW contributions, JHEP 02 (2018) 031 [arXiv:1711.02116] [INSPIRE].

4. ATLAS collaboration, Evidence for $$ t\overline{t}t\overline{t} $$ production in the multilepton final state in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector, Eur. Phys. J. C 80 (2020) 1085 [arXiv:2007.14858] [INSPIRE].

5. CMS collaboration, Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $$ \sqrt{s} $$ = 13 TeV, JHEP 11 (2019) 082 [arXiv:1906.02805] [INSPIRE].

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