Constraints on the Higgs boson anomalous FCNC interactions with light quarks

Abstract

We consider the Higgs boson anomalous FCNC interactions with $u$, $c$, $d$, $s$ and $b$ quarks using the effective field theory framework. Constraints on anomalous couplings are derived from experimental results on Higgs boson production with subsequent decay into $b\bar{b}$ pair at LHC with $\sqrt{s}=13$~TeV. Upper limits on the branching fractions of $H\to b\bar{s}$ and $H\to b\bar{d}$ are set by performing a realistic detector simulation and accurately reproducing analysis selections of the CMS Higgs boson measurement in the four-lepton final state at $\sqrt{s}=13$ TeV. The searches are projected into operation conditions of HL-LHC. Sensitivity at FCC-hh to anomalous FCNC interactions is studied based on Higgs boson production with $H\to \gamma \gamma$ decay channel. It is shown that at FCC-hh machine one can expect to set the upper limits of the order of $10^{-2}$ at $95\%$ CL for $\mathcal{B}(H\to b\bar{s})$ and $\mathcal{B}(H\to b\bar{d})$.

arXiv comment20 pages, 5 figures

References in corpus (30)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Parton distributions for the LHC
• Asymptotic formulae for likelihood-based tests of new physics
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Parton distributions for the LHC Run II
• PDF4LHC recommendations for LHC Run II
• UFO - The Universal FeynRules Output
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• TMVA - Toolkit for Multivariate Data Analysis
• Flavor Violating Higgs Decays
• Observation of Higgs boson decay to bottom quarks
• Patterns of Deviation from the Standard Model
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at sqrt(s) = 13 TeV
• A minimal set of top-Higgs anomalous couplings
• Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state
• Snowmass 2013 Top quark working group report
• Search for the flavor-changing neutral current interactions of the top quark and the Higgs boson which decays into a pair of b quarks at $\sqrt{s}=$ 13 TeV
• Large $h\to bs$ in generic two-Higgs-doublet models
• Search for top-quark decays $t\to Hq$ with 36 fb${}^{-1}$ of $pp$ collision data at $\sqrt{s}=13$ TeV with the ATLAS detector
• Rare Top Decays as Probes of Flavorful Higgs Bosons
• Search for top quark decays $t\to qH$, with $H\to \gamma \gamma$, in $\sqrt{s}=13$ TeV $pp$ collisions using the ATLAS detector
• Search for flavor-changing neutral currents in top quark decays $t\to Hc$ and $t\to Hu$ in multilepton final states in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for top quark decays via Higgs-boson-mediated flavor-changing neutral currents in pp collisions at sqrt(s) = 8 TeV
• Quark flavour-violating Higgs decays at the ILC
• Search for the $t\to ch$ decay at hadron colliders

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