Higgs probes of top quark contact interactions and their interplay with the Higgs self-coupling
arXiv:2202.02333 · doi:10.1007/JHEP05(2022)111
Abstract
We 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 , 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.
36 pages, 11 figures
References in corpus (15)
- The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
- Reducing full one-loop amplitudes to scalar integrals at the integrand level
- Algorithm FIRE -- Feynman Integral REduction
- On the Rational Terms of the one-loop amplitudes
- Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
- A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
- O new physics, where art thou? A global search in the top sector
- What is the scale of new physics behind the -flavour anomalies?
- : a Code for the Combination of Indirect and Direct Constraints on High Energy Physics Models
- Probing the Higgs self coupling via single Higgs production at the LHC
- Indirect probes of the trilinear Higgs coupling: and
- Higgs boson self-coupling constraints from single Higgs, double Higgs and Electroweak measurements
- The effect of an anomalous Higgs trilinear self-coupling on the h to gamma Z decay
- Machine learning the trilinear and light-quark Yukawa couplings from Higgs pair kinematic shapes
- Off-shell Higgs production at the LHC as a probe of the trilinear Higgs coupling