Off-shell Higgs Couplings in $H^{\ast }\to ZZ\to \ell \ell \nu \nu$

Abstract

We explore the new physics reach for the off-shell Higgs boson measurement in the $pp\to H^{\ast }\to Z({\ell }^{+}{\ell }^{-})Z(\nu \bar{\nu })$ channel at the high-luminosity LHC. The new physics sensitivity is parametrized in terms of the Higgs boson width, effective field theory framework, and a non-local Higgs-top coupling form factor. Adopting Machine-learning techniques, we demonstrate that the combination of a large signal rate and a precise phenomenological probe for the process energy scale, due to the transverse $ZZ$ mass, leads to significant sensitivities beyond the existing results in the literature for the new physics scenarios considered.

arXiv comment8 pages, 9 figures, 1 table

References in corpus (39)

• 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
• FeynRules 2.0 - A complete toolbox for tree-level phenomenology
• Dimension-Six Terms in the Standard Model Lagrangian
• Matching NLO QCD computations and parton shower simulations
• UFO - The Universal FeynRules Output
• TMVA - Toolkit for Multivariate Data Analysis
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Parton distributions with QED corrections
• The Composite Nambu-Goldstone Higgs
• Inadequacy of zero-width approximation for a light Higgs boson signal
• Automatic evaluation of UV and R2 terms for beyond the Standard Model Lagrangians: a proof-of-principle
• Constraining the Higgs boson width with ZZ production at the LHC
• Delphes, a framework for fast simulation of a generic collider experiment
• Bounding the Higgs width at the LHC using full analytic results for gg -> 2e 2μ
• Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state
• Very boosted Higgs in gluon fusion
• The Discrete Composite Higgs Model
• Probing Higgs couplings with high p_T Higgs production
• Limitations and Opportunities of Off-Shell Coupling Measurements
• Taming the off-shell Higgs boson
• Probing the nature of the Higgs-gluon coupling
• Constraints on off-shell Higgs boson production and the Higgs boson total width in $ZZ\to 4\ell$ and $ZZ\to 2\ell 2\nu$ final states with the ATLAS detector
• Signal-background interference effects for $gg\to H\to W^{+}{W}^{-}$ beyond leading order
• Resolving the Higgs-Gluon Coupling with Jets
• Beyond Geolocating: Constraining Higher Dimensional Operators in $H\to 4\ell$ with Off-Shell Production and More
• New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production
• Higgs couplings: disentangling New Physics with off-shell measurements
• Inadequacy of zero-width approximation for a light Higgs boson signal
• Measuring the Top Yukawa Coupling at 100 TeV
• Off-shell Higgs Probe to Naturalness
• Higgs Couplings at High Scales
• Probing $Zt\bar{t}$ couplings using $Z$ boson polarization in $ZZ$ production at hadron colliders
• Weak Boson Fusion at 100 TeV
• Boosting the $H\to$ invisibles searches with $Z$ boson polarization
• Modification of Higgs Couplings in Minimal Composite Models
• Role of the $Z$ polarization in the $H\to b\bar{b}$ measurement

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• Evidence of off-shell Higgs boson production from $ZZ$ leptonic decay channels and constraints on its total width with the ATLAS detector
• Returning CP-Observables to The Frames They Belong
• Probing composite Higgs boson substructure at the HL-LHC
• A new evaluation of the $HZZ$ coupling: direct bounds on anomalous contributions and $CP$ violating effects via a new asymmetry
• Form Factors in Higgs Couplings from Physics Beyond the Standard Model
• Higher-Order Corrections to Quantum Observables in $h\to W{W}^{\ast }$
• The Hierarchy Problem and the Top Yukawa: An Alternative to Top Partner Solutions
• Naturalness-motivated composite Higgs model for generating the top Yukawa coupling
• $CP$ violation in the $HZZ$ vertex and left-right asymmetries
• Directly Probing the Higgs-top Coupling at High Scales